エボラ出血熱に感染した看護師の愛犬「安楽死はさせない」 ダラス市が最善をつくすと約束

MADRID, SPAIN - OCTOBER 17: The Spanish San Juan de Dios order missionary (R) is carried by medical staff wearing protective suits at his arrival at Carlos III hospital on October 17, 2014 in Madrid, Spain. Three new suspected Ebola cases have arrived today at Carlos III hospital, one of them a passenger on an Air France flight from Lagos via Paris. (Photo by Gonzalo Arroyo Moreno/Getty Images)

GUANGZHOU, CHINA - OCTOBER 16: (CHINA OUT) Staff participate in a medical inspection exercise to prepare for possible Ebola virus on October 16, 2014 in Guangzhou, Guangdong province of China. An Ebola-preventing exercise gets held in Guangzhou on Thursday. 236 medical staff were killed by Ebola virus up to now. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

GUANGZHOU, CHINA - OCTOBER 16: (CHINA OUT) Staff participate in a medical inspection exercise to prepare for possible Ebola virus on October 16, 2014 in Guangzhou, Guangdong province of China. An Ebola-preventing exercise gets held in Guangzhou on Thursday. 236 medical staff were killed by Ebola virus up to now. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

MONROVIA, LIBERIA - OCTOBER 16: MSF health worker are seen in high risk area at the ELWA 3 Ebola Centre of Doctors Without Borders (MSF) on October 16, 2014 in Paynesville suburb east of Monrovia, Liberia. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

An ambulance transporting a Spanish missionary, recently returned from Liberia, arrives at the specialist disease unit in Madrid's Carlos III hospital on October 16, 2014 where 17 others are in quarantine as a precaution following the admission of a Spanish nurse infected with the ebola virus. Spanish doctors identified six more cases of possible infection with the deadly Ebola virus yesterday as the nurse being treated for the disease showed signs of improvement, officials said. AFP PHOTO / PIERRE-PHILIPPE MARCOU (Photo credit should read PIERRE-PHILIPPE MARCOU/AFP/Getty Images)

DALLAS, TX - OCTOBER 16: Two hazmat workers prepare to reenter The Village Bend East apartment where a second health care worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 16: Co-workers help a hazmat worker disrobe after coming out of The Village Bend East apartment where a second healthcare worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 16: Co-workers help a hazmat worker disrobe after coming out of The Village Bend East apartment where a second healthcare worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

A tourist poses for a photo next to Jeff Hulbert from Annapolis, Maryland, dressed in a protective suit and mask demanding for a halt of all flights from West Africa, outside the White House in Washington, DC on October 16, 2014. Top US health officials faced a grilling Thursday by lawmakers infuriated over the nation's fumbling response to the Ebola outbreak, as the Obama administration scrambles to contain the disease's spread. Centers for Disease Control (CDC) director Thomas Frieden has become the most prominent target of the criticism, which has mounted as it emerged that a second Texas health care worker infected with the deadly disease was allowed to board a commercial flight despite reporting a low-grade fever. AFP PHOTO/MLADEN ANTONOV (Photo credit should read MLADEN ANTONOV/AFP/Getty Images)

Members of the NGO U Fondation is about to enter a house where quarantined family members suffer from the Ebola virus, on October 16, 2014 in Monrovia. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A member of the NGO U Fondation leaves a house after visiting quarantined family members suffering from the Ebola virus, on October 16, 2014 in Monrovia. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Members of the NGO U Fondation give medication to a man whose quarantined family members are suffering from the Ebola virus, on October 16, 2014 in Monrovia. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A member (L) of the NGO U Fondation give medication to quarantined family members suffering from the Ebola virus, on October 16, 2014 in Monrovia. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Members of the NGO U Fondation give medication on October 16, 2014 in Monrovia, to a child whose quarantined family members are suffering from the Ebola virus. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Members of the NGO U Fondation give medication to a child whose quarantined family members are suffering from the Ebola virus on October 16, 2014 in Monrovia. Liberian doctors and nurses at the frontline of the Ebola epidemic returned to work on October 15, 2014 after a two-day strike demanding hazard pay in the country hardest hit by the crisis. Liberia has been the hardest hit by the epidemic, with 2,458 deaths out of 4,249 cases, about half the global total, according to World Health Organization figures. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Jeremra Cooper, 16, wipes his face from the heat while in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center on October 16, 2014 in Paynesville, Liberia. The 8th grade student said he lost six family members to the Ebola epidemic before coming down sick with the disease himself and being sent to the MSF center, where he recovered after one month. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Mohammed Wah, 23, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center on October 16, 2014 in Paynesville, Liberia. The construction worker said that Ebola killed 5 members of his extended family and he thinks he contracted the disease while caring for his neffew. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Varney Taylor, 26, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after attending a survivors' meeting on October 16, 2014 in Paynesville, Liberia. He said he lost three family members to the disease and believes he contracted Ebola while carrying the body of his aunt after her death. The Ebola epidemic has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Benetha Coleman, 24, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after attending a survivors' meeting on October 16, 2014 in Paynesville, Liberia. She said that her husband and two children died due to the disease. The Ebola epidemic has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Victoria Masah, 28, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center on October 16, 2014 in Paynesville, Liberia. She said her husband and two children died of Ebola. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Eric Forkpa, 23, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after meeting with fellow survivors on October 16, 2014 in Paynesville, Liberia. The college student, majoring in civil engineering, said he thinks he caught Ebola while caring for his sick uncle, who died of the disease. He spent 18 days at the MSF center recovering from the virus. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Emanuel Jolo, 19, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after a survivors' meeting on October 16, 2014 in Paynesville, Liberia. The 12th grade high school student lost six family members and believes he caught the disease while washing the body of his father, who died of Ebola. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor James Mulbah, 2, stands with his mother, Tamah Mulbah, 28, who also recovered from Ebola in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after survivors' meeting on October 16, 2014 in Paynesville, Liberia. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor John Massani, 27, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center on October 16, 2014 in Paynesville, Liberia. The construction worker said that Ebola killed 6 members of his extended family and he thinks he contracted the disease while caring for a sick relative. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Mohammed Bah, 39, stands at the Doctors Without Borders (MSF), Ebola treatment center after meeting with fellow survivors on October 16, 2014 in Paynesville, Liberia. Bah, who works as a driver, said he lost his wife, mother, father and sister to Ebola, which has an average 70 percent mortality rate. The disease leaves survivors immune to the strain that sicked them. He said he spent a week at the MSF center recovering from the disease. Like many other Ebola survivors, he said that the stigma of having had Ebola as been difficult. 'I've been rejected by everyone. I'm alone with my two children,' he said. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Vavila Godoa, 43, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after survivors' meeting on October 16, 2014 in Paynesville, Liberia. Godoa, a tailor, said the stigma of having had Ebola has been difficult, and he has lost all of his clients due to fear. 'They don't come around anymore,' he said. He believes he caught Ebola while caring for his sick wife, who died of the disease. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Ami Subah, 39, stands inside the low-risk area of the Doctors Without Borders (MSF), treament center after meeting with fellow survivors on October 16, 2014 in Paynesville, Liberia. Subah, a midwife, said she thinks she caught Ebola when she delivered a baby boy from a sick mother. The boy, she said, survived, but the mother died. She said she has not had work since her recovery, due to the stigma of having had Ebola. 'Nobody will even let me draw water from the community well,' she said. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivor Peters Roberts, 22, stands in the low-risk section of the Doctors Without Borders (MSF), Ebola treatment center after a survivors' meeting on October 16, 2014 in Paynesville, Liberia. The 11th grade student said that he lost a sister, uncle and cousin to Ebola and he believes he caught the disease while caring for his uncle. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 16: Ebola survivors Anthony Naileh, 46, and his wife Bendu Naileh, 34, stand at the Doctors Without Borders (MSF), Ebola treatment center after meeting with fellow survivors on October 16, 2014 in Paynesville, Liberia. Anthony said he is a steographer at the Liberian Senate and plans to go back to work for the January session. Bendu, a nurse, said she thought she caught Ebola after laying her hands in prayer on a nefew who had the disease in August. She then sickened her husband, who cared for her. The virus has a 70 percent mortality rate, according to the World Health Organization, but leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

DALLAS, TX - OCTOBER 16: A hazmat worker puts on protective clothing before entering The Village Bend East apartment complex where a second healthcare worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 16: After putting on their protective gear, hazmat workers prepare to enter the apartment at the The Village Bend East complex where a second health care worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 16: A hazmat worker gives a co-worker a thumbs-up after putting on their protective gear before entering the apartment in the The Village Bend East complex where a second health care worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 16: A Dallas police car and an emergency response vehicle sit in the parking lot at the The Village Bend East apartment complex where a second health care worker who has tested positive for the Ebola virus resides on October 16, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

MADRID, SPAIN - OCTOBER 16: An ambulance arrives at Carlos III hospital, carrying a suspected Ebola patient from an Air France plane that landed at Madrid Barajas airport to on October 16, 2014 in Madrid, Spain. Madrid's Barajas international airport activated emergency measures after a passenger on an Air France flight from Lagos via Paris was suspected of possibly having Ebola. All passengers on the Air France 1300 plane will now be disinfected. (Photo by Gonzalo Arroyo Moreno/Getty Images)

Pedestrians walk past a share prices board displayed on a window of a securities firm in Tokyo on October 16, 2014. Tokyo stocks tumbled 2.22 percent to a near five-month low on a stronger yen October 16 following sell-offs in New York and Europe that were fuelled by fears about the global economy and the Ebola epidemic. AFP PHOTO / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

ATLANTA, GA - OCTOBER 15: Ebola patient Amber Vinson arrives by ambulance at Emory University Hospital on October 15, 2014 in Atlanta, Georgia. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Kevin C. Cox/Getty Images)

DALLAS, TX - OCTOBER 15: Emergency vehicles escort an ambulance on the tarmac at Love Field Airport October 15, 2014. The ambulance had reportedly delivered Amber Vinson, a health care worker, to an air ambulance. According to reports, Vinson, had contracted the Ebola virus and had taken a commercial Frontier Airlines flight from Cleveland, Ohio to Dallas, Texas, a day before become symptomatic. (Photo by Stewart F. House/Getty Images)

DALLAS, TX - OCTOBER 15: An air ambulance carrying Amber Vinson prepares to turn onto the runway for take off from Love Field Airport October 15, 2014. According to reports, Vinson, a healthcare worker, had contracted the Ebola virus and had taken a commercial Frontier Airlines flight from Cleveland, Ohio to Dallas, Texas, a day before become symptomatic. (Photo by Stewart F. House/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Liberian red cross health worker closes a bag where body of 10-month-old girl Asatu Kamba, whose mum 27-year-old Kumba Blama died suspectedly due to Ebola on September 24, is placed in an abandoned house in Monrovia capital of Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Liberian red cross health workers walk to pick up the body of 10-month-old girl Asatu Kamba, whose mum 27-year-old Kumba Blama died suspectedly due to Ebola on September 24, from an abandoned house in Monrovia capital of Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Liberian red cross health workers walk in narrow streets to pick up the body of 10-month-old girl Asatu Kamba, whose mum 27-year-old Kumba Blama died suspectedly due to Ebola on September 24, from an abandoned house in Monrovia capital of Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Liberian red cross health worker carries a plastic bag where body of 10-month-old girl Asatu Kamba, whose mum 27-year-old Kumba Blama died suspectedly due to Ebola on September 24, is placed in Monrovia capital of Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Liberian red cross health workers walk to pick up the body of 10-month-old girl Asatu Kamba, whose mum 27-year-old Kumba Blama died suspectedly due to Ebola on September 24, from an abandoned house in Monrovia capital of Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

DALLAS, TX - OCTOBER 15: A general view of the apartment where Amber Vinson resides as a hazmat crew prepares to clean at the The Village Bend East complex on October 15, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

NEW YORK, NY - OCTOBER 15: A trader works on the floor of the New York Stock Exchange (NYSE) on October 15, 2014 in New York City. As fears from Ebola and a global slowdown spread, stocks plunged on Wednesday with the Dow falling over 400 points during the afternoon before receovering slightly. (Photo by Spencer Platt/Getty Images)

NEW YORK, NY - OCTOBER 15: A trader works on the floor of the New York Stock Exchange (NYSE) on October 15, 2014 in New York City. As fears from Ebola and a global slowdown spread, stocks plunged on Wednesday with the Dow falling over 400 points during the afternoon before receovering slightly. (Photo by Spencer Platt/Getty Images)

DALLAS, TX - OCTOBER 15: A hazmat worker with Protect Envinronmental gestures to a co-worker at The Village Bend East apartment complex where a second health care worker who has tested positive for the Ebola virus resides on October 15, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 15: Hazmat workers with Protect Environmental unload barrels in preparation for decontaminating an apartment at The Village Bend East apartment complex where a second health care worker who has tested positive for the Ebola virus resides on October 15, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 15: A hazmat worker with Protect Environmental carries a barrel in preparation for decontaminating an apartment as security personnel are near at The Village Bend East apartment complex where a second health care worker who has tested positive for the Ebola virus resides on October 15, 2014 in Dallas, Texas. Nurse Amber Vinson joins Nina Pham as health workers who have contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

Amy Hughes (R), a lecturer in emergency response, speaks to volunteers about specialist personal protective equipment during a National Health Service (NHS) volunteer induction and Ebola information session at the Ministry of Health in central London, on October 15, 2014. Almost 4,500 people have died in the Ebola epidemic that broke out in west Africa at the start of the year, according to fresh figures released Wednesday the World Health Organization. AFP PHOTO / LUKE MACGREGOR/POOL (Photo credit should read LUKE MACGREGOR/AFP/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Red Cross members sterilize each other before they pick up the dead body of Mambodou Aliyu (35) died due to the Ebola virus,, in Monrovia, Liberia on 15 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Red Cross members sterilize the dead body of Mambodou Aliyu (35) died due to the Ebola virus,, in Monrovia, Liberia on 15 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Red Cross members carry dead body of Mambodou Aliyu (35) died due to the Ebola virus,, in Monrovia, Liberia on 15 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

DALLAS, TX - OCTOBER 15: Hazmat workers with Protect Environmental unload barrels in preparation for decontaminating an apartment at The Village Bend East apartment complex where a second health care worker who has tested positive for the Ebola virus resides on October 15, 2014 in Dallas, Texas. The newest case of nurse Amber Vinson joins nurse Nina Pham, who also contracted the Ebola virus at Texas Heath Presbyterian Hospital while treating patient Thomas Eric Duncan, who has since died. (Photo by Mike Stone/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Medics wear protective gear carry a Liberian patient 70-year-old Francis Koneh, suspected of being infected with the Ebola virus, during his transfer to a hospital in Westpoint district of Monrovia, Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Medics wear protective gear carry a Liberian patient 70-year-old Francis Koneh, suspected of being infected with the Ebola virus, during his transfer to a hospital in Westpoint district of Monrovia, Liberia on October 15, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

TUBMANBURG, LIBERIA - OCTOBER 15: A Liberian Army soldier from the 1st Engineer Company takes a break from working on new Ebola treatment center on October 15, 2014 in Tubmanburg, Liberia. The center is the first of 17 Ebola treatment centers being built by Liberian forces under American supervision as part of Operation United Assistance to combat the Ebola epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: People watch as aid workers from the Liberian Medical Renaissance League stage an Ebola awareness event on October 15, 2014 in Monrovia, Liberia. The group performs street dramas throughout Monrovia to educate the public on Ebola symptoms and the handling of people who are infected with the virus, which has killed more than 4,400 people in Western Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Aid workers from the Liberian Medical Renaissance League stage an Ebola awareness event on October 15, 2014 in Monrovia, Liberia. The group performs street dramas throughout Monrovia to educate the public on Ebola symptoms and the handling of people who are infected with the virus, which has killed more than 4,400 people in Western Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 15: Aid workers from the Liberian Medical Renaissance League stage an Ebola awareness event on October 15, 2014 in Monrovia, Liberia. The group performs street dramas throughout Monrovia to educate the public on Ebola symptoms and the handling of people who are infected with the virus, which has killed more than 4,400 people in Western Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA October 14: An ambulance team prepares to collect a body suspected of being infected with Ebola by putting on protective equipment on October 14, 2014 in Monrovia, Liberia. (Photo by Tanya Bindra for The Washington Post via Getty Images)

MONROVIA, LIBERIA October 14: An ambulance team loads the body of a woman suspected of being infected with Ebola onto a truck for eventual cremation on October 14, 2014 in Monrovia, Liberia. (Photo by Tanya Bindra for The Washington Post via Getty Images)

MONROVIA, LIBERIA October 14: A nurse drags out a mattress coated with bodily fluids from inside the Island Clinic Ebola Treatment Unit on October 14, 2014 in Monrovia, Liberia. (Photo by Tanya Bindra for The Washington Post via Getty Images)

SALT LAKE CITY, UT - OCTOBER 14: Petri dishes grow bacteria to help determine drug candidates for testing new drugs against a part of Ebola that is vulnerable to drugs, at the University of Utah, on October 14, 2014 in Salt Lake City, Utah. Dr. Michael Kay says this breakthrough if proven to be effective, won't help the current outbreak of Ebola but he hopes it will be able to prevent the next one in the coming years on all the strains of Ebola not just one. (Photo by George Frey/Getty Images)

SALT LAKE CITY, UT - OCTOBER 14: Bottles that contains a peptide's, are put in trays before Mark Petersen test them in a mass spectrometer to see if they are pure enough to be potential new drug candidates for testing against a part of Ebola that is vulnerable to drugs, at the University of Utah, works in his office on a structural modeling of part of the Ebola virus he discovered that is vulnerable to drug and thus treatment on October 14, 2014 in Salt Lake City, Utah. Dr. Kay says this breakthrough if proven to be effective, won't help the current outbreak of Ebola but he hopes it will be able to prevent the next one in the coming years on all the strains of Ebola not just one. (Photo by George Frey/Getty Images)

SALT LAKE CITY, UT - OCTOBER 14: Mark Petersen looks at a bottle that contains a peptide, before it is put in a mass spectrometer to see if it is pure enough to be a potential new drug candidates for testing against a part of Ebola that is vulnerable to drugs, at the University of Utah, on October 14, 2014 in Salt Lake City, Utah. Dr. Michael Kay says this breakthrough if proven to be effective, won't help the current outbreak of Ebola but he hopes it will be able to prevent the next one in the coming years on all the strains of Ebola not just one. (Photo by George Frey/Getty Images)

MONROVIA, LIBERIA - OCTOBER 14: Red cross health workers who wear protective gear, wash another health worker with chlorinated water after sterilizing the body of 67-year-old Jenneh Momoh, died due to Ebola virus in Caldwell town of Monrovia, Liberia on 14 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

DALLAS, TX - OCTOBER 14: The Texas Health Presbyterian Hospital, where health care worker Nina Pham, is being treated for the Ebola virus is seen on October 14, 2014 in Dallas, Texas. Pham contracted the virus when she provided treatment to Thomas Eric Duncan, the West African man who later died from the disease. (Photo by Mike Stone/Getty Images)

FALMOUTH, ENGLAND - OCTOBER 14: Medical equipment on board RFA Argus as it prepares to leave its home port of Falmouth for Sierra Leone on October 14, 2014 in Cornwall, England. The medical ship with a fully-equipped 100-bed hospital on board is currently being loaded to be sent to Sierra Leone, along with three Merlin helicopters to help in the fight against Ebola. The vessel, which is due to set sail on Friday, will not be used to treat Ebola-infected patients, but mainly to transport supplies and to ferry personnel. (Photo by Matt Cardy/Getty Images)

Health workers make noise as they protest against WHO protocols outside Carlos III Hospital where Ebola infected Spanish nurse Teresa Romero is treated in Madrid on October 14, 2014. Romero, who fell sick after caring for two missionaries with Ebola, remains in a 'very serious condition'. AFP PHOTO/ DANI POZO (Photo credit should read DANI POZO/AFP/Getty Images)

LEIPZIG, GERMANY - OCTOBER 14: Ageneral view outside the Klinikum St. Georg hospital on October 14, 2104 in Leipzig, Germany. Hospital officials have announced that a 56-year-old ebola-infected Sudanese UN employee, who was flown to Leipzig from Liberia on October 3, died earlier today. The case is the first death from ebola in Germany since the recent outbreak in west Africa began. (Photo by Jens Schlueter/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: Ebola survivor Abrahim Quota, 5, stands outside the JFK Ebola treatment center after recovering from the disease on October 13, 2014 in Monrovia, Liberia. He had arrived at the treatment center 10 days before with his parents, who both died there from the virus. The Ministry of Health was to deliver him home after his release to live with relatives. Ebola, which has an average 70 percent mortality rate, leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: Ebola survivor Paul Horace, 34, stands outside the JFK Ebola treatment center after recovering from the disease on October 13, 2014 in Monrovia, Liberia. Horace, an ambulance driver, spent a week at there recovering from the disease, which has an average 70 percent mortality rate. Ebola leaves survivors immune to the strain that sicked them. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: Emergency room doctor and Ebola survivor Philip Ireland stands outside the JFK Hospital where he works on October 13, 2014 in Monrovia, Liberia. Ireland spent 21 days recovering from the disease in July. Ebola, which has an average 70 percent mortality rate, leaves survivors immune to the strain that sickened them. (Photo by John Moore/Getty Images)

DALLAS, TX - OCTOBER 13: A hazmat worker prepares to put on protective gear outside of an apartment where a second person diagnosed with the Ebola virus resides on October 13, 2014 in Dallas, Texas. Officials say a health care worker who cared for Liberian patient Thomas Eric Duncan has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 13: A hazmat worker wipes his head with a towel outside of an apartment where a second person diagnosed with the Ebola virus resides on October 13, 2014 in Dallas, Texas. Officials say a health care worker who cared for Liberian patient Thomas Eric Duncan has tested positive for the virus. (Photo by Mike Stone/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: A doctor outside the JFK Ebola treatment center speaks to journalists on October 13, 2014 in Monrovia, Liberia. A planned strike was averted as most nurses and health care workers reported for work, many saying they could not in good conscience leave their patients unattended. Health workers have been asking for increased hazard pay. They are one of the most high-risk groups of Ebola infection, as nearly 100 of them have died in Liberia alone. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: Health workers dress in protective clothing before taking the body of an Ebola victim from the Island Clinic Ebola treatment center on October 13, 2014 in Monrovia, Liberia. A planned strike at Ebola treatment centers was averted as most nurses and health care workers reported for work, many saying they could not in good conscience leave their patients unattended. Health workers have been asking for increased hazard pay. They are one of the most high-risk groups of Ebola infection, as nearly 100 of them have died in Liberia alone. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: People walk past the Island Clinic Ebola treatment center on October 13, 2014 in Monrovia, Liberia. A planned strike was averted as most nurses and health care workers reported for work, many saying they could not in good conscience leave their patients unattended. Health workers have been asking for increased hazard pay. They are one of the most high-risk groups of Ebola infection, as nearly 100 of them have died in Liberia alone. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 13: A doctor keeps a pedestrian away from the JFK Ebola treatment center on October 13, 2014 in Monrovia, Liberia. A planned strike at treatment centers was averted as most nurses and health care workers reported for work, many saying they could not in good conscience leave their patients unattended. Health workers have been asking for increased hazard pay. They are one of the most high-risk groups of Ebola infection, and nearly 100 of them have died in Liberia alone. (Photo by John Moore/Getty Images)

DALLAS, TX - OCTOBER 13: A Dallas sherrif watches as hazmat workers stage waste removal barrels outside of an apartment where a second person diagnosed with the Ebola virus resides on October 13, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 13: A hazmat worker receives instruction for a Dallas County sheriff in front of the apartment where a second person diagnosed with the Ebola virus resides on October 13, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: Two workers with hazmat company CG Environmental Cleaning Guys stand in the alley behind an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing leaves after treating the front porch and sidewalk of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing treats the front porch of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: A man dressed in protective hazmat clothing walks towards an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: Brad Smith with the hazmat company CG Environmental Cleaning Guys talks with the media outside of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: G.C. Williford, Battalion Chief for the Dallas Fire Department, enters an apartment where a second person has been diagnosed with the Ebola virus on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

DALLAS, TX - OCTOBER 12: G.C. Williford, Battalion Chief for the Dallas Fire Department, talks with fire department personell outside an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. A female nurse working at Texas Heath Presbyterian Hospital, the same facility that treated Thomas Eric Duncan, has tested positive for the virus. (Photo by Mike Stone/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 12: Doctors Without Borders (MSF), staff cheer as Ebola survivors are out-processed from the treatment center after recovering from the virus on October 12, 2014 in Paynesville, Liberia. About 40 percent of people who contract the disease survive. According to the World Health Organization, the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 12: A mother and child put their handprints on a piece of artwork made by outgoing Ebola survivors from the Doctors Without Borders (MSF), treatment center on October 12, 2014 in Paynesville, Liberia. Roughly 40 percent of people who come down with Ebola survive. According to the World Health Organization, the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

A medical staff wearing a mask works on the sixth floor of the Carlos III hospital in Madrid on October 12, 2014. Worldwide authorities scrambled to prevent the spread of the deadly Ebola virus today as the condition of a Spanish nurse infected with the disease improved. Romero was on October 6 the first person diagnosed as having caught the deadly hemorrhagic fever outside of Africa. AFP PHOTO / PIERRE-PHILIPPE MARCOU (Photo credit should read PIERRE-PHILIPPE MARCOU/AFP/Getty Images)

People walk on October 11, 2014 outside the recently opened Ebola Island Clinic in Monrovia. Health workers started a strike on October 6 to obtain a hazard pay increase, which had been announced by the government. The Island Clinic, Liberia's largest government Ebola treatment center, is run by the World Health Organization (WHO) and opened in September. Like all units run by NGOs, it is under-resourced and overrun by demand, forced to fill in for a public health infrastructure that has been decimated by 14 years of civil war and grinding poverty. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

MONROVIA, LIBERIA - OCTOBER 11: Workers unload boxes of personal and household Ebola protection kits to a Unicef warehouse on October 11, 2014 in Monrovia, Liberia. Unicef and partner agencies are distributing the kits to help families to not contract the virus from sick loved ones in their homes, before they can get an open bed at an Ebola treatment center. (Photo by John Moore/Getty Images)

TUBMANBURG, LIBERIA - OCTOBER 11: Members of the Liberian Army 1st Engineer Company work on an Ebola treatment center on October 11, 2014 in Tubmanburg, Liberia. Liberian army soldiers and American troops are building an Ebola treatment center there, the first of 17 to be built nationwide, as part of the U.S. response to the epidemic. The World Health Organization says that the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 11: Workers unload boxes of personal and household Ebola protection kits to a Unicef warehouse on October 11, 2014 in Monrovia, Liberia. Unicef and partner agencies are distributing the kits to help families to not contract the virus from sick loved ones in their homes, before they can get an open bed at an Ebola treatment center. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 11: Workers unload boxes of personal and household Ebola protection kits to a Unicef warehouse on October 11, 2014 in Monrovia, Liberia. Unicef and partner agencies are distributing the kits to help families to not contract the virus from sick loved ones in their homes, before they can get an open bed at an Ebola treatment center. (Photo by John Moore/Getty Images)

MONROVIA - LIBERIA - OCTOBER 11: Residents of SKD viilage of the Liberian capital Monrovia queue to receive UNICEF's personal protective kits to help protection from Ebola Virus Disease on October 11, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA - LIBERIA - OCTOBER 11: Residents of SKD village of the Liberian capital Monrovia queue to receive UNICEF's personal protective kits to help protection from Ebola Virus Disease on October 11, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA - LIBERIA - OCTOBER 11: A resident of SKD village of the Liberian capital Monrovia walks after receiving UNICEF's personal protective kits to help protection from Ebola Virus Disease on October 11, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

TUBMANBURG, LIBERIA - OCTOBER 11: Liberian Army (L), and U.S. Marine engineers speak at the construction site of an Ebola treatment center on October 11, 2014 in Tubmanburg, Liberia. The Liberian military and American troops are building an Ebola treatment center there, the first of 17 to be built nationwide, as part of the U.S. response to the epidemic. The World Health Organization says that the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

People leave a hotel in Skopje, on October 11, 2014, after a quarantine was lifted, following preventive measures after the death of a British man suspected to be caused by Ebola. Macedonian health authorities say test results show that the Briton who died in the country's capital wasn't infected with the Ebola virus. Thirty-five people quarantined after it was thought they had contact with him were to be released, Health Ministry official Jovanka Kostovska announced on October 11. AFP PHOTO / ROBERT ATANASOVSKI (Photo credit should read ROBERT ATANASOVSKI/AFP/Getty Images)

TUBMANBURG, LIBERIA - OCTOBER 11: Members of the Liberian Army 1st Engineer Company work on an Ebola treatment center on October 11, 2014 in Tubmanburg, Liberia. Liberian army soldiers and American troops are building an Ebola treatment center there, the first of 17 to be built nationwide, as part of the U.S. response to the epidemic. The World Health Organization says that the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

Protesters take part in a demonstration called by PACMA (Animalist Party Against Mistreatment to Animals) after the dog of a Spanish nurse infected with Ebola in Madrid was put down, in Bilbao on October 11, 2014. Excalibur, the dog of Spanish nurse Teresa Romero infected with Ebola in Madrid, was put down on October 8 by health authorities who feared it could spread the deadly disease, despite a campaign to spare him by animal rights activists. AFP PHOTO / RAFA RIVAS (Photo credit should read RAFA RIVAS/AFP/Getty Images)

TUBMANBURG, LIBERIA - OCTOBER 11: Liberian army (L), and U.S. Marine engineers take cover from the downdraft of a Marine MS-22 Osprey tiltrotor on October 11, 2014 in Tubmanburg, Liberia. Liberian army soldiers, together with American troops, are building an Ebola treatment center there, the first of 17 to be built nationwide, as part of the U.S. response to the epidemic. The World Health Organization says that the Ebola epidemic has killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

Arriving passengers are being interviewed by journalists outside of Terminal 4 at the JFK airport in New York on October 11, 2014. The airport started health screenings for travelers arriving from Ebola-hit West African nations on October 11, as the death toll from the deadly virus topped 4,000. Passengers arriving from Liberia, Sierra Leone and Guinea will have their temperatures taken, be assessed for signs of illness and answer questions about their health and exposure history, the US Centers for Disease Control and Prevention (CDC) said. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)

Medical staff wearing protective suits work at the Carlos III hospital in Madrid on October 11, 2014, where 17 people are in quarantine as a precaution following the admission of Spanish nurse Teresa Romero infected with the ebola virus. The condition of a Spanish nurse infected with the deadly Ebola virus has improved and she is talking, a medical source said today. Romero was on October 6 the first person diagnosed as having caught the deadly hemorrhagic fever outside of Africa. AFP PHOTO / PEDRO ARMESTRE (Photo credit should read PEDRO ARMESTRE/AFP/Getty Images)

A man holds a placard with his temperature and flashes a victory sign from his window at the Carlos III hospital in Madrid on October 11, 2014, where 17 people are in quarantine as a precaution following the admission of Spanish nurse Teresa Romero infected with the ebola virus. The condition of a Spanish nurse infected with the deadly Ebola virus has improved and she is talking, a medical source said today. Romero was on October 6 the first person diagnosed as having caught the deadly hemorrhagic fever outside of Africa. AFP PHOTO / PEDRO ARMESTRE (Photo credit should read PEDRO ARMESTRE/AFP/Getty Images)

Monrovia, Liberia - Oct 10: Nurses prepare to enter the Ebola ward at JFK Hospital in Monrovia, Liberia. After a doctor at the hospital contracted the virus, some employees quit and the facility stopped accepting patients. (Kevin Sieff/The Washington Post via Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Children pass an Ebola burial team who came to collect the body of a woman in the New Kru Town suburb on October 10, 2014 of Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team, dressed in protective clothing, carries the body of a woman, 54, while passing a bucket of chlorinated water for hand washing in the New Kru Town suburb on October 10, 2014 of Monrovia, Liberia. Frequent hand washing is one of the main safeguards against contracting Ebola, which is transmitted through bodily fluids. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team carries the body of a woman, 54, from her home in the New Kru Town suburb on October 10, 2014 of Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team dresses in protective clothing before collecting the body of a woman, 54, from her home in the New Kru Town suburb on October 10, 2014 of Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team carries the body of a woman through the New Kru Town suburb on October 10, 2014 of Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A member of an Ebola burial team collects the body of a four-year-old girl from an apartment on October 10, 2014 in Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Red Cross members wear special uniform before carrying the body of 36 aged Hanfen John who died due to the Ebola virus, in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team collects the body of a four-year-old girl from a one-room apartment on October 10, 2014 in Monrovia, Liberia. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A Red Cross member wears special uniform before carrying the body of 36 aged Hanfen John who died due to the Ebola virus, in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Relative of Hanfen John who died due to the Ebola virus, mourns for him in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Red Cross members carry the body of 36 aged Hanfen John who died due to the Ebola virus, in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Red Cross members carry the body of 36 aged Hanfen John who died due to the Ebola virus, in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Relatives of Hanfen John who died due to the Ebola virus, mourn for him in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Ecki Uche (35, on the photo) who suffers from Ebola virus, waits on JFK Hospital which closed after it's doctors and health officers died due to Ebola virus, in Monrovia, Liberia on 10 October, 2014. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Varney Jonson, 46, grieves as an Ebola burial team takes away the body of his wife Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. He and his family said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Family members grieve as Ebola burial team members prepare to remove the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Family members and neighbors said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Varney Jonson, 46, grieves as an Ebola burial team takes away the body of his wife Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. He and his family said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Family members and neighbors try to convince an Ebola burial team not to take away the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Community members said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Varney Jonson, 46, grieves as an Ebola burial team takes away the body of his wife Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. He and his family said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Family members grieve as Ebola burial team members prepare to remove the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Family members and neighbors said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Family members grieve as Ebola burial team members prepare to remove the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Family members and neighbors said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team removes the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Family members and neighbors said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Family members grieve near a body truck as Ebola burial team members prepare to remove the body of Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. Family members and neighbors said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Varney Jonson, 46, grieves as an Ebola burial team takes away the body of his wife Nama Fambule for cremation on October 10, 2014 in Monrovia, Liberia. He and his family said that she had been sick for more than a year with an undiagnosed illness and protested her body being taken away as an Ebola victim. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman grieves after Ebola burial team members arrived to take away the body of Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Ebola burial team members remove the body of Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A member of an Ebola burial team straps down the body of Mekie Nagbe, 28, before taking it for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman grieves as Ebola burial team members arrive to take away the body of Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman grieves as Ebola burial team members arrive to take away the body of Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: An Ebola burial team disinfects a the body of Mekie Nagbe, 28, before removing it for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Sophia Doe (R), and her grand daughters Arthuneh Qunoh (C), 9, and Beauty Mandi, 9 months (2nd R) weep as an Ebola burial team arrives to take away her daughter Mekie Nagbe, 28, for cremation oon October 10, 2014 in Monrovia, Liberia. The children seen in the photo are daughters of the deceased. Mekie Nagbe, a market vendor died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa.The woman had died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Sophia Doe holds her granddaughter Beauty Mandi, 9 months, as an Ebola burial team arrives to take away her daughter, (the child's mother), Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. The children seen in the photo are daughters of the deceased. Mekie Nagbe, a market vendor died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa.The woman had died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman watches as an Ebola burial team arrives to take away her sister Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: Sophia Doe sits with her grandchildren Beauty Mandi, 9 months (L) and Arthuneh Qunoh, 9, (R), while watching the arrival an Ebola burial team to take away the body of her daughter Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. The children seen in the photo are daughters of the deceased. Mekie Nagbe, a market vendor died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa.The woman had died outside her home earlier in the morning while trying to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman throws a handful of soil towards the body of her sister as Ebola burial team members take her Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman collapses after Ebola burial team members take her sister Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman throws a handful of soil towards the body of her sister as Ebola burial team members take her sister Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 10: A woman crawls towards the body of her sister as Ebola burial team members take her sister Mekie Nagbe, 28, for cremation on October 10, 2014 in Monrovia, Liberia. Nagbe, a market vendor, collapsed and died outside her home earlier in the morning while leaving to walk to a treatment center, according to her relatives. The burial of loved ones is important in Liberian culture, making the removal of infected bodies for cremation all the more traumatic for surviving family members. The World Health Organization says the Ebola epidemic has now killed more than 4,000 people in West Africa. (Photo by John Moore/Getty Images)

Medical staff exit on October 10,2014 the Super 8 hotel in Skopje after visiting quarantined guests and personnel following the October 9 death of a British man in the Macedonian capital Skopje, who allegedly displayed Ebola-like symptoms, which include fever and vomiting. Macedonian Health Ministry officials said on October 10 it was highly unlikely that a British man who died in Macedonia had Ebola, however 35 people thought to have been in contact with him are under quarantine. The man arrived in Macedonia from London on October 2 and was not thought to have travelled to any of the west African countries affected by the Ebola virus, his friends were reported to have said. AFP PHOTO / ROBERT ATANASOVSKI (Photo credit should read ROBERT ATANASOVSKI/AFP/Getty Images)

MONROVIA, LIBERIA - OCTOBER 09: U.S. Air Force personnel put up tents to house a 25-bed U.S.-built hospital for sick Liberian health workers as part in Operation United Assistance on October 9, 2014 in Monrovia, Liberia. U.S. President Barack Obama has committed up to 4,000 troops in West Africa to combat the Ebola epidemic, which has killed at least 3,400 people. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 09: U.S. Marines arrive on MV-22 Ospreys to take part in Operation United Assistance on October 9, 2014 in Monrovia, Liberia. Some 90 Marines arrived on KC-130 transport planes and the Ospreys to support the American effort to contain the Ebola epidemic. The four Ospreys, which can land vertically like helicopters, will transport U.S. troops and supplies as they build 17 Ebola treatment centers around Liberia. U.S. President Barack Obama has committed up to 4,000 troops in West Africa to combat the disease. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 09: U.S. Marines arrive to take part in Operation United Assistance on October 9, 2014 near Monrovia, Liberia. Some 90 Marines arrived on KC-130 transport planes and MV-22 Ospreys to support the American effort to contain the Ebola epidemic. The Ospreys, which can land vertically like helicopters, will transport U.S. troops and supplies as they build 17 Ebola treatment centers around Liberia. U.S. President Barack Obama has committed up to 4,000 troops in West Africa to combat the disease. (Photo by John Moore/Getty Images)

WASHINGTON, DC - OCTOBER 09: United Nations Secretary-General Ban Ki-moon (R) delivers opening remarks with Guinea President Alpha Conde during a meeting on the Ebola crisis during the International Monetary Fund annual meetings at the World Bank headquarters October 9, 2014 in Washington, DC. Sierra Leone President Bai Koroma and Liberia President Ellen Johnson Sirleaf joined the conference via video link. (Photo by Chip Somodevilla/Getty Images)

FRISCO, TX - OCTOBER 8: City of Frisco Fire Chief Mark Piland speaks at the podium while city mayor Maher Maso looks on during a press conference held at the Central Fire Station in Frisco, Texas, to address a patient at the Care Now clinic in Frisco who exhibited some signs and symptoms of the Ebola virus. (Photo by Stewart F. House/Getty Images)

DALLAS, TX - OCTOBER 08: A possible Ebola patient is brought to the Texas Health Presbyterian Hospital on October 8, 2014 in Dallas, Texas. Thomas Eric Duncan, the first confirmed Ebola virus patient in the U.S., died earlier today. (Photo by Joe Raedle/Getty Images)

DALLAS, TX - OCTOBER 08: Health care workers wait for the arrival of a possible Ebola patient at the Texas Health Presbyterian Hospital on October 8, 2014 in Dallas, Texas. Thomas Eric Duncan, the first confirmed Ebola virus patient in the U.S., died earlier today. (Photo by Joe Raedle/Getty Images)

MONROVIA, LIBERIA - OCTOBER 08: Airmen from the 633rd Medical Group of the U.S. Air Force unload equipment for a 25-bed hospital to aid Liberian health workers infected with Ebola on October 8, 2014 near Monrovia, Liberia. The airmen are setting up the modular hospital, known by the military as an expeditionary medical support system (EMEDS), near the international airport ouside of Monrovia. The airmen will train U.S. public health service members in using the hospital's medical equipment, but will not be involved in treatment of Ebola patients. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 08: Protective wire surrounds the first tents set up as part of a 25-bed hospital to aid Liberian health workers infected with Ebola on October 8, 2014 near Monrovia, Liberia. U.S. Air Force personnel are constructing the modular hospital, known by the military as an expeditionary medical support system (EMEDS), near the international airport ouside of Monrovia. The airmen will train U.S. public health service members in using the hospital's medical equipment, but will not be involved in treatment of Ebola patients. (Photo by John Moore/Getty Images)

A healthworker wearing a surgical mask protests outside the Carlos III hospital in Madrid on October 8, 2014 demanding the resignation of Spanish Minister of Health, Social Services and Equality Ana Mato in the wake of the Ebola virus situation in Spain. Spanish health care workers and unions complain of a long list of failings in the case of a nurse who contracted Ebola while treating two elderly missionaries who died from the virus. AFP PHOTO / PIERRE-PHILIPPE MARCOU (Photo credit should read PIERRE-PHILIPPE MARCOU/AFP/Getty Images)

A man holding a placard that reads, 'How many more must die?' protests outside the Carlos III hospital in Madrid on October 8, 2014 demanding the resignation of Spanish Minister of Health, Social Services and Equality Ana Mato in the wake of the Ebola virus situation in Spain. Spanish health care workers and unions complain of a long list of failings in the case of a nurse who contracted Ebola while treating two elderly missionaries who died from the virus. AFP PHOTO / PIERRE-PHILIPPE MARCOU (Photo credit should read PIERRE-PHILIPPE MARCOU/AFP/Getty Images)

MADRID, SPAIN - OCTOBER 08: Spanish Health Minister Ana Mato answers questions from the media after attending a plenary session at the Spanish Parliament on October 8, 2014 in Madrid, Spain. Spanish Health Minister Ana Mato confirmed on Monday the nurse Teresa R. R. tested positive after treating two Ebola patients who had recently returned from Africa. (Photo by Gonzalo Arroyo Moreno/Getty Images)

MADRID, SPAIN - OCTOBER 08: Workers wearing protective clothing stand outside an appartment building, the private residence for Spanish nurse, Teresa R. R who has tested positive for the Ebola virus on October 8, 2014 in Alcorcon, near Madrid, Spain. Spanish Health Minister Ana Mato confirmed nurse, Teresa R. R had tested positive after treating two Ebola patients who had been brought back to the country from Africa. (Photo by Pablo Blazquez Dominguez/Getty Images)

ALCORCON, SPAIN - OCTOBER 07: Animal Rights activists stand with their dogs outside a block of apartments where a Spanish nurse who tested positive for the Ebola virus lives on October 7, 2014 in Alcorcon, near Madrid, Spain. Her dog is thought to be at risk of being put down as health officials try to keep the virus from spreading. Spanish Health Minister Ana Mato confirmed the nurse had tested positive after treating two Ebola patients that had been brought back to the country from Africa. (Photo by Pablo Blazquez Dominguez/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: A U.S. soldier rinses his boots in chlorinated water after exiting the new U.S. Navy mobile laboratory on October 7, 2014 near Gbarnga, in Bong County of central Liberia. The U.S. now operates 4 mobile laboratories in Liberia as part of the American response to the Ebola epidemic. The disease has killed more than 3,400 people in West Africa, according to the World Health Organization. (Photo by John Moore/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: Grave diggers prepare for new Ebola victims outside an Ebola treatment center on October 7, 2014 near Gbarnga, in Bong County in central Liberia. The 70-bed facility is run by the U.S.-based International Medical Corps and supported by USAID. The Ebola epidemic has killed more than 3,400 people in West Africa. (Photo by John Moore/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: A grave digger prepares a new grave outside an Ebola treatment center on October 7, 2014 near Gbarnga, in Bong County in central Liberia. The 70-bed facility is run by the U.S.-based International Medical Corps and supported by USAID. The Ebola epidemic has killed more than 3,400 people in West Africa. (Photo by John Moore/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: Grave diggers prepare for new Ebola victims outside an Ebola treatment center on October 7, 2014 near Gbarnga, in Bong County in central Liberia. The 70-bed facility is run by the U.S.-based International Medical Corps and supported by USAID. The Ebola epidemic has killed more than 3,400 people in West Africa. (Photo by John Moore/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: A grave marker stands over a new cemetery for Ebola victims outside an Ebola treatment center on October 7, 2014 near Gbarnga in Bong County of central Liberia. The 70-bed facility is run by the U.S.-based International Medical Corps and supported by USAID. The Ebola epidemic has killed more than 3,400 people in West Africa. (Photo by John Moore/Getty Images)

A woman faints (Bottom) as another reacts while volunteers (unseen) take away from a nearby house the body of a woman who died of Ebola, in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

Women faint (Bottom) as another reacts while volunteers (unseen) take away from a nearby house the body of a woman who died of Ebola, in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

A woman reacts while volunteers (unseen) take away from a nearby house the body of a woman who died of Ebola, in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

Volunteers wait for other volunteers to bring the bodies of people who died from Ebola, to burry them in a field in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

Volunteers in protective suit carry for burial the body of a person who died from Ebola in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

Volunteers in protective suit burry the body of a person who died from Ebola in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

Volunteers in protective suit burry a person who died from Ebola in Waterloo, some 30 kilometers southeast of Freetown, on October 7, 2014. Dozens of British military personnel are due to fly to Sierra Leone next week to help build medical facilities to combat the Ebola epidemic, the defence ministry said on October 7. AFP PHOTO / FLORIAN PLAUCHEUR (Photo credit should read FLORIAN PLAUCHEUR/AFP/Getty Images)

GBARNGA, LIBERIA - OCTOBER 07: U.S. Navy microbiologist Lt. Jimmy Regeimbal tests blood samples for Ebola at the U.S. Navy mobile laboratory on October 5, 2014 near Gbarnga, Liberia. The U.S. now operates 4 mobile laboratories as part of the American response to the Ebola epidemic. The disease has killed more than 3,400 people in West Africa, according to the World Health Organization. (Photo by John Moore/Getty Images)

ALCORCON, SPAIN - OCTOBER 07: A woman and girl wear protective mask before they enter Hospital Fundacion Alcorcon where a Spanish nurse tested positive for the Ebola virus on October 7, 2014 in Alcorcon, near Madrid, Spain. Spanish Health Minister Ana Mato confirmed the nurse had tested positive after treating two Ebola patients that had been brought back to the country from Africa. (Photo by Pablo Blazquez Dominguez/Getty Images)

ALCORCON, SPAIN - OCTOBER 07: A nurse talks to the press outside Hospital Fundacion Alcorcon where a Spanish nurse tested positive for the Ebola virus on October 7, 2014 in Alcorcon, near Madrid, Spain. Spanish Health Minister Ana Mato confirmed the nurse had tested positive after treating two Ebola patients that had been brought back to the country from Africa. (Photo by Pablo Blazquez Dominguez/Getty Images)

WUERZBURG, GERMANY - OCTOBER 07: A volunteer doctor who will travel to west Africa to help care for Ebola patients takes a blood sample during training offered by the German Red Cross (DRK) on October 7, 2014 in Wuerzburg, Germany. Over 1,200 people across Germany have responded to a DRK call for volunteers and the German armed forces, the Bundeswehr, has also asked for volunteers from its own ranks. Countries around the world are taking increasing precautions and committing resources in the battle against the deadly virus as the number of victims continues to climb. (Photo by Timm Schamberger/Getty Images) WUERZBURG, GERMANY - OCTOBER 07: A volunteer doctor who will travel to West Africa to help care for Ebola patients puts on an isolation suit during training offered by the German Red Cross (DRK) on October 7, 2014 in Wuerzburg, Germany. Over 1,200 people across Germany have responded to a DRK call for volunteers, while the German armed forces, the Bundeswehr, has also asked for volunteers from its own ranks. Countries around the world are taking increasing precautions and committing resources in the battle against the deadly virus as the number of victims continues to climb. (Photo Timm Schamberger/Getty Images)

WUERZBURG, GERMANY - OCTOBER 07: A volunteer doctor who will travel to West Africa to help care for Ebola patients prepares his safety glasses during training offered by the German Red Cross (DRK) on October 7, 2014 in Wuerzburg, Germany. Over 1,200 people across Germany have responded to a DRK call for volunteers, while the German armed forces, the Bundeswehr, has also asked for volunteers from its own ranks. Countries around the world are taking increasing precautions and committing resources in the battle against the deadly virus as the number of victims continues to climb. (Photo Timm Schamberger/Getty Images)

WUERZBURG, GERMANY - OCTOBER 07: A volunteer doctor who will travel to West Africa to help care for Ebola patients puts on an isolation suit during training offered by the German Red Cross (DRK) on October 7, 2014 in Wuerzburg, Germany. Over 1,200 people across Germany have responded to a DRK call for volunteers, while the German armed forces, the Bundeswehr, has also asked for volunteers from its own ranks. Countries around the world are taking increasing precautions and committing resources in the battle against the deadly virus as the number of victims continues to climb. (Photo Timm Schamberger/Getty Images)

WUERZBURG, GERMANY - OCTOBER 07: A volunteer doctor who will travel to West Africa to help care for Ebola patients takes off safety glasses during training offered by the German Red Cross (DRK) on October 7, 2014 in Wuerzburg, Germany. Over 1,200 people across Germany have responded to a DRK call for volunteers, while the German armed forces, the Bundeswehr, has also asked for volunteers from its own ranks. Countries around the world are taking increasing precautions and committing resources in the battle against the deadly virus as the number of victims continues to climb. (Photo Timm Schamberger/Getty Images)

Ambulances and medical workers stand near an airplane carrying an Norwegian woman infected with the Ebola virus in Sierra Leone, after her arrival at the Oslo airport Gardermoen on October 7, 2014. AFP PHOTO / STIAN LYSBERG SOLUM / NTB scanpix / NORWAY OUT (Photo credit should read STIAN LYSBERG SOLUM/AFP/Getty Images)

ALCORCON, SPAIN - OCTOBER 07: The Spanish nurse infected by Ebola is moved by ambulance to Carlos III Hospital from Alcorcon Hospital on October 7, 2014 in Alcorcon, Spain. Spanish Health Minister Ana Mato confirmed the nurse had tested positive after treating two Ebola patients that had been brought back to the country from Africa. (Photo by Gonzalo Arroyo Moreno/Getty Images)

ALCORCON, SPAIN - OCTOBER 07: Police escort an ambulance that carries the Spanish nurse infected by Ebola to Carlos III Hospital from Alcorcon Hospital on October 7, 2014 in Alcorcon, Spain. Spanish Health Minister Ana Mato confirmed the nurse had tested positive after treating two Ebola patients that had been brought back to the country from Africa. (Photo by Gonzalo Arroyo Moreno/Getty Images)

US air Force soldiers delimit with barbed wire the position of the next Ebola treatment center reserved for contaminated healthcare workers in Monrovia, on October 6, 2014, where the virus continues to claim more victims. Liberia is the country hit hardest by the largest Ebola outbreak on record, accounting for about two-thirds of the total 3,338 deaths recorded in the region since the beginning of the year. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

US air Force soldiers delimit with barbed wire the position of the next Ebola treatment center reserved for contaminated healthcare workers in Monrovia, on October 6, 2014, where the virus continues to claim more victims. Liberia is the country hit hardest by the largest Ebola outbreak on record, accounting for about two-thirds of the total 3,338 deaths recorded in the region since the beginning of the year. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

MONROVIA, LIBERIA - OCTOBER 06: A sick man waits to enter the Ebola treatment center at the Island Hospital on October 6, 2014 on the outskirts of Monrovia, Liberia. The hospital, with it's 120 beds, has remained at capacity since it's opening by the Liberian Ministry of Health and the World Health Organization (WHO), in September. The Ebola outbreak has killed more than 3,400 people in West Africa, according to the WHO. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 06: A woman lies alongside the road while waiting to enter the Ebola treatment center at the Island Hospital on October 6, 2014 on the outskirts of Monrovia, Liberia. She said she was bleeding heavily from a miscarriage and was unable to get treatment at other clinics, many of which now refuse to treat bleeding patients due to fears of contracting Ebola. The Island Hospital, with it's 120 beds, has remained at full capacity since it's opening by the Liberian Ministry of Health and the World Health Organization (WHO), in September. The Ebola outbreak has killed more than 3,400 people in West Africa, according to the WHO. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 06: Relatives pray over a weak Siata Johnson, 23, outside the Ebola treatment center at the Island Hospital on October 6, 2014 on the outskirts of Monrovia, Liberia. The hospital, with it's 120 beds, has remained at capacity since it's opening by the Liberian Ministry of Health and the World Health Organization (WHO), in September. The Ebola outbreak has killed more than 3,400 people in West Africa, according to the WHO. (Photo by John Moore/Getty Images)

NEW YORK, NY - OCTOBER 05: Members of the Staten Island Liberian community and other residents attend a 'War Against Ebola' fundraiser and concert at the Christ Assembly Lutheran Church on October 5, 2014 in New York City. Staten Island, a borough of New York City, has one of the world's largest numbers of Liberian diaspora. The tight-knit community is increasingly concerned about family and loved ones residning in Liberia in the chance they have been exposed to the deadly virus. (Photo by Spencer Platt/Getty Images)

NEW YORK, NY - OCTOBER 05: Members of the Staten Island Liberian community and other residents attend a 'War Against Ebola' fundraiser and concert at the Christ Assembly Lutheran Church on October 5, 2014 in New York City. Staten Island, a borough of New York City, has one of the world's largest numbers of Liberian diaspora. The tight-knit community is increasingly concerned about family and loved ones residning in Liberia in the chance they have been exposed to the deadly virus. (Photo by Spencer Platt/Getty Images)

DALLAS, TX - OCTOBER 05: Members of the Cleaning Guys Haz Mat clean up company are seen as they sanitize the apartment where Ebola patient Thomas Eric Duncan was staying before being admitted to a hospital on October 5, 2014 in Dallas, Texas. The first confirmed Ebola virus patient in the United States was staying with family members at The Ivy Apartment complex before being treated at Texas Health Presbyterian Hospital Dallas. State and local officials are working with federal officials to monitor other individuals that had contact with the confirmed patient. (Photo by Joe Raedle/Getty Images)

EULESS, TX - OCTOBER 05: Cora Morris (L) and Quoi Morris pray with others parishioners during a church service at New Life Fellowship Church on October 5, 2014 in Euless, Texas. The congregation is made up of many people from Liberia where the first Ebola patient in America, Thomas Eric Duncan, lived before traveling to America with the virus. The service, led by Pastor Nathan Kortu, Jr., was an opportunity for the congregation to pray for their home country as well as their community and the family of Mr. Duncan. (Photo by Joe Raedle/Getty Images)

MONROVIA, LIBERIA - OCTOBER 05: A health worker washes his hands in chlorinated water while removing protective clothing after an hourlong shift in the high risk area of the Doctors Without Borders (MSF), treatment center on October 5, 2014 in Paynesville, Liberia. To reduce potentially deadly mistakes due to the heat while wearing protective clothing, MSF staff rotate out of the high risk areas each hour. The epidemic has killed more than 3,400 people in West Africa, according to the World Health Organization. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 05: A Doctors Without Borders (MSF), health worker in protective clothing holds a child suspected of having Ebola in the MSF treatment center on October 5, 2014 in Paynesville, Liberia. The girl and her mother, showing symptoms of the deadly disease, were awaiting test results for the virus. The Ebola epidemic has killed more than 3,400 people in West Africa, according to the World Health Organization. (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 05: An Ebola survivor holds his sick daughter while waiting to admit her for testing at the Doctors Without Borders (MSF), treatment center on October 5, 2014 in Paynesville, Liberia. Survivors of the deadly disease become immune to it. The Ebola epidemic has killed more than 3,400 people in West Africa, according to the World Health Organization. (Photo by John Moore/Getty Images)

Belongings lie on the ground after having been abandoned by sick people at the Ebola treatment centre at Island hospital in Monrovia on October 5, 2014, where the epidemic continues to result in more deaths. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man with his hands encased in plastic bags, cries after he learns that his brother, who he brought to the Ebola treatment centre at Island hospital in Monrovia on October 5, 2014, did not survive. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man thought to be suffering from the Ebola virus waits to receive attention from medical staff at the Ebola treatment at Island hospital in Monrovia on October 5, 2014. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man suspected of suffering from the Ebola virus waits to be admitted to the Island Hospital in Monrovia on October 5, 2014. Liberia is the worst hit of the West African nations at the centre of the epidemic, which has already killed 3,439 people, of these, 2,069 in Liberia, according to the latest figures from the World Health Organization (WHO). AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man suspected of suffering from the Ebola virus waits to be admitted to the Island Hospital in Monrovia on October 5, 2014. Liberia is the worst hit of the West African nations at the centre of the epidemic, which has already killed 3,439 people, of these, 2,069 in Liberia, according to the latest figures from the World Health Organization (WHO). AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

DALLAS, TX - OCTOBER 05: Members of the Cleaning Guys Haz Mat clean up company work on sanitizing the apartment where Ebola patient Thomas Eric Duncan was staying before being admitted to a hospital on October 5, 2014 in Dallas, Texas. The first confirmed Ebola virus patient in the United States was staying with family members at The Ivy Apartment complex before being treated at Texas Health Presbyterian Hospital Dallas. State and local officials are working with federal officials to monitor other individuals that had contact with the confirmed patient. (Photo by Joe Raedle/Getty Images)

A Red Cross worker takes off her protective suit after collecting a body of a person suspected of dying from the Ebola virus, from a house in the Center Street neighborhood of the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

DALLAS, TX - OCTOBER 04: Eric Williams (L) , a U.S. Congressional candidate, and Richard Mwachukwu, from the Organization of Nigerian Nationals, hug as they meet to speak with the media outside the Ivy Apartment complex where the confirmed Ebola virus patient was staying on October 4, 2014 in Dallas, Texas. They spoke to the media on their concerns about how the Ebola case is affecting the community. (Photo by Joe Raedle/Getty Images)

A body bag containing a person suspected of dying from the Ebola virus is collected and put on the back of a truck from a house in the West Point district of the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Members of the Red Cross make ready a body bag as they enter a house to collect the body of a person suspected of dying from the Ebola virus in the West Point district of the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Red Cross workers carry away the body of a person suspected of dying from the Ebola virus, in the neighborhood of Center Street in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Red Cross workers carry away the body of a person suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Red Cross workers carry away the body of a person suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A woman reacts after a relative is suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

People look on as a woman reacts after her husband is suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A woman reacts after her husband is suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A woman reacts after her husband is suspected of dying from the Ebola virus, in the Liberian capital Monrovia, on October 4, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: Doctors Without Borders (MSF) displays a family and home disinfection kit which MSF distributed on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: Residents of an Ebola affected township walk home with family and home disinfection kits distributed by Doctors Without Borders (MSF), on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: Residents of an Ebola affected township argue about not receiving enough family and home disinfection kits distributed by Doctors Without Borders (MSF), on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: Residents of an Ebola affected township take home family and home disinfection kits distributed by Doctors Without Borders (MSF), on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: Residents of an Ebola affected township take home family and home disinfection kits distributed by Doctors Without Borders (MSF), on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

NEW KRU TOWN, LIBERIA - OCTOBER 04: A child looks up as residents of an Ebola affected township wait before dawn to receive family and home disinfection kits distributed by Doctors Without Borders (MSF), on October 4, 2014 in New Kru Town, Liberia. MSF gave out thousands of the kits in early morning distributions, some of 50,000 such 'Ebola kits' to be given to families throughout the capital area. The kits, which include buckets, soap, gloves, anti-contamination gowns, plastic bags, a spray bottle and masks, are meant to give people some level of protection if a family member becomes sick, possibly from Ebola. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: A Liberian health worker dressed in an anti-contamination suit speaks with a boy at a center for suspected Ebola patients, formerly the maternity ward at Redemption Hospital on October 3, 2014 in Monrovia, Liberia. People at the center are tested for Ebola and if the results are positive, are sent to an Ebola treatment unit (ETU). The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: A World Health Organization (WHO), instructor speaks with new health workers during a training session on October 3, 2014 in Monrovia, Liberia. The WHO is training some 400 new health workers in two-week courses for the Liberian Ministry of Health. Many of the new health workers will be stationed in some of th 17 Ebola treatment units to be built by the U.S. military. The 'patients' in the training courses are Liberian survivors of the Ebola epidemic, hired by the WHO for the courses. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: Health workers help an Ebola survivor as she pretend vomits during a training World Health Organization (WHO), training session on October 3, 2014 in Monrovia, Liberia. The WHO is training some 400 new health workers in two-week courses for the Liberian Ministry of Health. Many of the new health workers will be stationed in some of th 17 Ebola treatment units to be built by the U.S. military. The 'patients' in the training courses are Liberian survivors of the epidemic, hired by the WHO for the courses. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: New health workers suit up in protective clothing during an Ebola training session on October 3, 2014 in Monrovia, Liberia. The WHO is training some 400 new health workers in two-week courses for the Liberian Ministry of Health. Many of the new health workers will be stationed in some of th 17 Ebola treatment units to be built by the U.S. military. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: U.S. military personnel walk to an equipment hangar on October 3, 2014 at the airport outside of Monrovia, Liberia. The U.S. military continues to build up forces and materiel as part of Operation United Assistance, the humanitarian mission to aid Liberia in West Africa's Ebola outbreak, which has killed more than 3,300 people. (Photo by John Moore/Getty Images)

DALLAS, TX - OCTOBER 03: A hazmat team arrives to clean a unit at the Ivy Apartments, where the confirmed Ebola virus patient was staying, on October 3, 2014 in Dallas, Texas. The first confirmed Ebola virus patient in the United States was staying with family members at The Ivy Apartment complex before being treated at Texas Health Presbyterian Hospital Dallas. State and local officials are working with federal officials to monitor other individuals that had contact with the confirmed patient. (Photo by Joe Raedle/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: Prince, 10, lies with his family in an Ebola holding center, formerly the maternity ward of Redemption Hospital on October 3, 2014 in Monrovia, Liberia. His father died of Ebola a week before. People at the center are tested for Ebola and if the results are positive, are sent to an Ebola treatment unit (ETU). The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: A Liberian Ministry of Health worker, looks over garbage at a holding center for suspected Ebola patients at Redemption Hospital on October 3, 2014 in Monrovia, Liberia. He had arrived there with his sick mother and two siblings to be tested for Ebola. His father died of the disease a week before. Patients there are tested for Ebola and if the results are positive, are sent to an Ebola treatment unit (ETU). The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 03: A Liberian Ministry of Health worker waits to be sprayed with disinfectant after removing his anti-contamination suit at a holding center for suspected Ebola patients at Redemption Hospital on October 3, 2014 in Monrovia, Liberia. Patients there are tested for Ebola and if the results are positive, are sent to an Ebola treatment unit (ETU). The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

A Health worker uses a piece of cardboard to carry a thermometer as he looks after a person acting as a patient at a World Health Organization health center for training to deal with the Ebola virus in the Liberian capital Monrovia, on October 3, 2014. By far the most deadly epidemic of Ebola on record has spread into five west African countries since the start of the year, infecting more than 7,000 people and killing about half of them. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 03: Maru, 3, waits outside to enter the ELWA 3 Doctors Without Borders Ebola treatment center on October 3, 2014 in Paynesville, Liberia. Filled to its current 250-bed capacity, the center can only take in as many new Ebola patients as the number of people who die overnight. The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

PAYNESVILLE, LIBERIA - OCTOBER 03: Maru, 3, waits outside to enter the ELWA 3 Doctors Without Borders Ebola treatment center on October 3, 2014 in Paynesville, Liberia. Filled to its current 250-bed capacity, the center can only take in as many new Ebola patients as the number of people who die overnight. The epidemic has killed more than 3,300 people in West Africa according to the U.S. Centers for Disease Control (CDC). (Photo by John Moore/Getty Images)

WASHINGTON, DC - OCTOBER 03: Howard University Hospital has admitted a patient with Ebola-like symptoms according to a hospital spokesperson October 3, 2014 in Washington, DC. The unnamed patient was admitted overnight and recently traveled to Nigeria, presenting symptoms upon his or her return, according to hospital spokesperson Kerry-Ann Hamilton. (Photo by Chip Somodevilla/Getty Images)

A worker guards the entrance of the Ebola treatment centre of aid agency Doctors Without Borders on October 3, 2014 where NBC cameraman Ashoka Mukpo, 3, who has been infected with the Ebola virus is being treated. AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Prof Dr Hans-Reinhard Brodt (R) Head of Infectious disease and HIV Center of the University Clinic where an Ebola patient arrived for treatment addresses a press conference in Frankfurt am Main, central Germany on October 3, 2014. The man from Uganda had been in Sierra leone where he was working as a doctor helping people with Ebola. AFP PHOTO / DANIEL ROLAND (Photo credit should read DANIEL ROLAND/AFP/Getty Images)

Medical staff wearing protective clothes are seen during the arrival of an Ebola patient at the isolation ward of the University Clinic in Frankfurt am Main, central Germany on October 3, 2014. The man from Uganda had been in Sierra leone where he was working as a doctor helping people with Ebola. AFP PHOTO /DPA / BORIS ROESSLER +++ GERMANY OUT +++ (Photo credit should read BORIS ROESSLER/AFP/Getty Images)

People sit on October 2, 2014 in the West Point area of Monrovia. Liberia has accounted for more than half of Ebola deaths, with the official toll rising to 3,338 on October 1, according to the World Health Organization (WHO). AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: People pass an Ebola awareness mural on October 2, 2014 in Monrovia, Liberia. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A man passes an Ebola awareness mural on October 2, 2014 in Monrovia, Liberia. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A burial team disinfects an Ebola victim while collecting him for cremation on October 2, 2014 in Monrovia, Liberia. Eight Liberian Red Cross burial teams under contract with the country's Ministry of Health collect the bodies of Ebola victims in the capital. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A health worker interviews a sick man after he arrived to a Ministry of Health treatment center for Ebola patients on October 2, 2014 in Monrovia, Liberia. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A burial team unloads an Ebola victim, who died in an ambulance, while collecting him for cremation on October 2, 2014 in Monrovia, Liberia. Eight Liberian Red Cross burial teams under contract with the country's Ministry of Health collect the bodies of Ebola victims in the capital. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A neighbor walks past the building where Eric Duncan, the first Ebola patient to develop symptoms in the United States, rented a room on October 2, 2014 in Monrovia, Liberia. Duncan, a Liberian citizen, reportedly physically assisted Marthalene Williams, 19, and 6 1/2 months pregnant, to a Monrovia hospital on September 15, where she was turned away. She died on September 17 but not before probably infecting him, and he then flew to Dallas without showing symptoms, arriving September 20 and became sick several days later. Officials say they up to 100 people in Dallas may have been exposed to the deadly virus by people who Ducan came in contact with before he was admitted to Texas Health Presbyterian Hospital. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: Sanitized goggles and clothing hang to dry at a Ministry of Health treatment center for Ebola victims on October 2, 2014 in Monrovia, Liberia. More than 3,200 people have died in West Africa due to the epidemic. (Photo by John Moore/Getty Images)

A health ministry employee visits the West Point district in Monrovia as part of an awareness campaign for Ebola on October 2, 2014. The UN launched a mission to prevent the worldwide spread of Ebola as the US hunted for people who came in contact with the first African diagnosed with the deadly virus outside the continent. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Members of a local Liberian association working the UNICEF organise an awareness campaign for Ebola in the West Point district in Monrovia on October 2, 2014. The UN launched a mission to prevent the worldwide spread of Ebola as the US hunted for people who came in contact with the first African diagnosed with the deadly virus outside the continent. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man pushes a wheelbarrow containing a woman thought to be a victim of the Ebola virus at the Ebola treatment centre at Island hospital in Monrovia on October 2, 2014. Liberian President Ellen Johnson Sirleaf said Wednesday the Ebola outbreak that has devastated her country was showing signs of stabilising as the official death toll rose again.. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man leaves a wheelbarrow containuing a woman thought to be a victim of the Ebola virus at the Ebola treatment centre at Island hospital in Monrovia on October 2, 2014. Liberian President Ellen Johnson Sirleaf said Wednesday the Ebola outbreak that has devastated her country was showing signs of stabilising as the official death toll rose again.. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man suspected of suffering from the Ebola virus waits to be admitted to Island Hospital in Monrovia on October 2, 2014. The UN launched a mission to prevent the worldwide spread of Ebola as the US hunted for people who came in contact with the first African diagnosed with the deadly virus outside the continent. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A health worker stands near a man suspected of suffering from the Ebola virus as he lies on the ground naked after he was admitted to Island Hospital in Monrovia on October 2, 2014. The UN launched a mission to prevent the worldwide spread of Ebola as the US hunted for people who came in contact with the first African diagnosed with the deadly virus outside the continent. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A health worker walks past a boy suspected of suffering from the Ebola virus after he was admitted to Island Hospital in Monrovia on October 2, 2014. The UN launched a mission to prevent the worldwide spread of Ebola as the US hunted for people who came in contact with the first African diagnosed with the deadly virus outside the continent. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

LONDON, ENGLAND - OCTOBER 2: British International Development Secretary Justine Greening speaks at the 'Defeating Ebola: Sierra Leone' conference at Lancaster House on October 2, 2014 in London, England. Britain hosted an international conference today to help organise the fight against Ebola in its former colony Sierra Leone, as a charity warned that five people were becoming infected every hour in the West African nation. (Photo by Matt Dunham - WPA Pool/Getty Images)

MONROVIA, LIBERIA - OCTOBER 02: A construction worker hammers in the rain while building a new Ebola isolation and treatment center overnight on Ocober 2, 2014 in Monrovia, Liberia. Work continues 24-hours a day on such centers, which still cannot keep up with demand as the Ebola epidemic continues to spread. (Photo by John Moore/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers take part in training at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

TO GO WITH AFP STORY by Alex PIGMAN Volunteers train at a Doctors Without Borders (MSF) replica of Ebola treatment centres, prior to be sent to help fight the spread of the deadly virus in Africa, in Brussels, on October 1, 2014. MSF has scrambled together a a replica of treatment centres it built virtually overnight in Liberia, Sierra Leone and Guinea -- the hotspots of an Ebola outbreak that has infected more than 7,000 people and killed about half of them. AFP PHOTO/Emmmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)

A picture taken on October 1, 2013 shows a police officer taking a motorist's temperature as part of protective measures against the Ebola virus at a border crossing with Sierra Leone in Liberia's western Cape Mount province, the country's first province to be quarantined. The US prepared on October 3 to fly home a cameraman who contracted Ebola in Liberia, as the head of the UN's response agency headed to Sierra Leone to lead the fight against an epidemic he called the world's 'highest priority'. The death toll from the west African outbreak has reached 3,338 dead from 7,178 infected. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A picture taken on October 1, 2013 shows people waiting to be screened as part of protective measures against the Ebola virus, next to a warning sign at a border crossing with Sierra Leone in Liberia's western Cape Mount province, the country's first province to be quarantined. The US prepared on October 3 to fly home a cameraman who contracted Ebola in Liberia, as the head of the UN's response agency headed to Sierra Leone to lead the fight against an epidemic he called the world's 'highest priority'. The death toll from the west African outbreak has reached 3,338 dead from 7,178 infected. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Island hospital staff build on October 1, 2014 in Monrovia new units to treat patients suffering from the Ebola virus. Liberia has accounted for more than half of Ebola deaths, with the official toll rising to 3,338 on October 1, according to the World Health Organization (WHO). AFP PHOTO / PASCAL GUYOT. (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

As DISD Police watch, Gabriella Beltran, right, walks from Hotchkiss Elementary with her children Valeria Curranza, Joseph Manuel Beltran and Oliver Torres. Parents were summoned by the Dallas School District to pick their children up early from L.L. Hotchkiss Elementary, Wednesday, October 1, 2014. Children who had reportedly been near the man who has been diagnosed with the Ebola virus have attended the school. (Paul Moseley/Fort Worth Star-Telegram/MCT via Getty Images)

DALLAS, TX - OCTOBER 01: Students are dismissed from Sam Tasby Middle School on October 1, 2014 in Dallas, Texas. Officials confirmed that a student, who had contact with the first confirmed Ebola virus patient in the United States, attends classes at the school. State and local officials are working with federal officials to monitor other individuals that had contact with the confirmed patient. (Photo by Tom Pennington/Getty Images)

DALLAS, TX - OCTOBER 01: Students are dismissed from Sam Tasby Middle School on October 1, 2014 in Dallas, Texas. Officials confirmed that a student, who had contact with the first confirmed Ebola virus patient in the United States, attends classes at the school. State and local officials are working with federal officials to monitor other individuals that had contact with the confirmed patient. (Photo by Tom Pennington/Getty Images)

A resident of the Ivy Apartments in Dallas, Texas, talks to the news media gathered at the fence of the complex on Wednesday, Oct. 1, 2014. A man who has been diagnosed with the Ebola virus was staying there. (Paul Moseley/Fort Worth Star-Telegram/MCT via Getty Images)

A health worker takes a patient's temperature on October 1, 2014 at MSF's (Doctors Without Borders) Ebola treatment center in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27, 2014 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Health workers in protective suits walk on October 1, 2014 at MSF's (Doctors Without Borders) Ebola treatment center in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27, 2014 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Health workers in protective suit put their equipment on, on October 1, 2014 at MSF's (Doctors Without Borders) Ebola treatment center in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27, 2014 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A health worker helps a doctor to fix his gloves with adhesive tape, on October 1, 2014 at MSF's (Doctors Without Borders) Ebola treatment center in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27, 2014 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

People stand on graves in the Tweh farm cemetery on September 30, 2014 in Monrovia, where burials have been halted due to the Ebola outbreak . Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man sits on a cross in the Tweh farm cemetery on September 30, 2014 in Monrovia, where burials have been halted due to the Ebola outbreak . Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released on September 27 said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Workers build a new unit for Ebola patients on September 30, 2014 at the Island hospital in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released Saturday said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A man walks in the Tweh farm cemetery on September 30, 2014 in Monrovia. Liberia has been hit the hardest by the worst-ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data released Saturday said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A health worker in a protective suit walks past newly arrived patients suspected of suffering from the Ebola virus at Island Hospital in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

People suspected of suffering from the Ebola virus wait to be taken into at Island Hospital for treatment in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A woman reads the list of people who died of the Ebola virus at Island Hospital in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

A Health worker in a protective suit closes the gate of Island Hospital after welcoming new patients suspected of suffering from the Ebola virus in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Health workers in protective suits stand next to newly arrived patients suspected of suffering from the Ebola virus at Island Hospital in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Health workers in protective suits greet a woman who has come to deliver food to relatives at Island Hospital where people suffering from the Ebola virus are being treated in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Health workers in protective suits look at an ambulance upon its arrival at Island Hospital in Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Workers of a cleaning company collect garbage in central Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Workers of a cleaning company collect garbage in central Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Workers of a cleaning company collect garbage in central Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

Workers of a cleaning company collect garbage in central Monrovia on September 30, 2014. Liberia has been hit the hardest by the worst ever outbreak of Ebola, which has killed more than 3,000 people in west Africa. The latest UN data said 1,830 people have died from the killer virus in Liberia so far, and 3,458 people have been infected. AFP PHOTO / PASCAL GUYOT (Photo credit should read PASCAL GUYOT/AFP/Getty Images)

MONROVIA, LIBERIA - AUGUST 17: Hanah Siafa lies with her daughter Josephine, 10, while hoping to enter the new Doctors Without Borders (MSF), Ebola treatment center on August 17, 2014 in Monrovia, Liberia. The facility initially has 120 beds, making it the largest such facility for Ebola treatment and isolation in history, and MSF plans to expand it to a 350-bed capacity. Tents at the center were provided by UNICEF. The virus has killed more than 1,000 people in four African countries, and Liberia now has had more deaths than any other country. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 16: A crowd enters the grounds of an Ebola isolation center in the West Point slum on August 16, 2014 in Monrovia, Liberia. A mob of several hundred people, chanting, 'No Ebola in West Point,' opened the gates and took out the patients, many saying that the Ebola epidemic is a hoax. The center, a closed primary school originally built by USAID, was being used by the Liberian Health Ministry to temporarily isolate people suspected of carrying the virus. Some 10 patients had 'escaped' the building the night before, according to a nurse, as the center had no medicine to treat them. The Ebola epidemic has killed more than 1,000 people in four West African countries, with Liberia now having the most deaths. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 16: A crowd looks over the wall into an Ebola isolation center before pushing into the facility in the West Point favella on August 16, 2014 in Monrovia, Liberia. A crowd of several hundred people, chanting, 'No Ebola in West Point,' forced open the gates and took out the patients, many saying that the Ebola epidemic is a hoax. The center, a closed primary school originally built by USAID, was being used by the Liberian health ministry to temporarily isolate people suspected of carrying the virus. Some 10 patients had 'escaped' the building the night before, according to a nurse, as the center had no medicine to treat them. The Ebola epidemic has killed more than 1,000 people in four West African countries, with Liberia now having the most deaths. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 16: A crowd pushes through the gates of an Ebola isolation center in the West Point slum on August 16, 2014 in Monrovia, Liberia. A crowd of several hundred people, chanting, 'No Ebola in West Point,' opened the gates and took out the patients, many saying that the Ebola epidemic is a hoax. The center, a closed primary school originally built by USAID, was being used by the Liberian health ministry to temporarily isolate people suspected of carrying the virus. Some 10 patients had 'escaped' the building the night before, according to a nurse, as the center had no medicine to treat them. The Ebola epidemic has killed more than 1,000 people in four West African countries, with Liberia now having the most deaths. (Photo by John Moore/Getty Images)

An MSF medical worker checks their protective clothing in a mirror at an MSF facility in Kailahun, on August 15, 2014. Kailahun along with Kenama district is at the epicentre of the world's worst Ebola outbreak. The World Health Organisation (WHO) revealed that the latest death toll from the Ebola virus in Guinea, Sierra Leone, Liberia and Nigeria had claimed more than1000 lives. Health Organisations are looking into the possible use of experimental drugs to combat the latest outbreak in West Africa. AFP PHOTO/Carl de Souza (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

MONROVIA, LIBERIA - AUGUST 15: A Liberian health worker speaks with families in a classroom now used as Ebola isolation ward on August 15, 2014 in Monrovia, Liberia. People suspected of contracting the Ebola virus are being brought to the center, a closed primary school originally built by USAID, while larger facililities are being constructed to house the surging number of patients. The Ebola epidemic has killed more than 1,000 people in four West African countries. (Photo by John Moore/Getty Images)

Women of Kandopleu village dance during a welcoming ceremony for Ivory Coast's Health minister, visiting to present the prophylactic measures against Ebola fever, on August 14, 2014 near Biankouma near the border with Guinea and Liberia. Ivory Coast announced on August 11, 2014 that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation. AFP PHOTO / ISSOUF SANOGO (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)

Sierra Leone government burial team members wearing protective clothing carry the coffin of Dr Modupeh Cole, Sierra Leone's second senior physician to die of Ebola, at the MSF facility in Kailahun, on August 14, 2014. Kailahun along with Kenama district is at the epicentre of the world's worst Ebola outbreak. The World Health Organisation (WHO) revealed that the latest death toll from the Ebola virus in Guinea, Sierra Leone, Liberia and Nigeria had claimed more than1000 lives. Health Organisations are looking into the possible use of experimental drugs to combat the latest outbreak in West Africa. AFP PHOTO/Carl de Souza (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

Medecins Sans Frontieres (MSF) medical workers disinfect the body bag of an Ebola victim at the Medecins Sans Frontieres (MSF) facility in Kailahun, on August 14, 2014. Kailahun along with the Kenema district is at the epicentre of the worst epidemic of Ebola since its discovery four decades ago. The death toll stands at more than 1,000. The Ebola epidemic in West Africa claimed a fourth victim in Nigeria on August 14 while the United States ordered the evacuation of diplomats' families from Sierra Leone and analysts warned of a heavy economic toll on the stricken region. AFP PHOTO/Carl de Souza (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: A man lies in a newly-opened Ebola isolation center set up by the Liberian health ministry in a closed school on August 14, 2014 in Monrovia, Liberia. People suspected of contracting the Ebola virus are being sent to such centers in the capital Monrovia where the spread of the highly contagious and deadly Ebola virus has been called catastrophic. The epidemic has killed more than 1,000 people in four West African countries. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: Children sit in a newly-opened isolation ward set up by the Liberian health ministry in a closed school on August 14, 2014 in Monrovia, Liberia. They sleep on matresses on the floor. People suspected of contracting the Ebola virus are being sent to such centers in the capital Monrovia where the spread of the highly contagious and deadly Ebola virus has been called catastrophic. The epidemic has killed more than 1,000 people in four West African countries. (Photo by John Moore/Getty Images)

Strechers carry a man on a stretcher in an isolation room on August 14, 2014 at the district hospital of Biankouma, during a simulation operation organized by the Ivory Coast Health Ministry to train medical staff to deal with potential patients with Ebola. US President Barack Obama called his counterparts in Liberia and Sierra Leone on August 14 to discuss the Ebola outbreak in West Africa, the White House said. AFP PHOTO / ISSOUF SANOGO (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: A Liberian health department burial team disinfects their protective clothing after retreiving the body of a woman suspected of dying of the Ebola virus on August 14, 2014 in Monrovia, Liberia. Teams of undertakers wearing protective clothing are retreiving bodies from all over the capital of Monrovia, where the spread of the highly contagious Ebola virus has been called catastrophic. The Ebola epidemic has killed more than 1,000 people in four West African countries and has overwhelmed the Liberian health system. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: A relative weeps as a health department burial team prepares to enter the home of a woman suspected of dying of the Ebola virus on August 14, 2014 in Monrovia, Liberia. Teams are picking up bodies from all over the capital of Monrovia, where the spread of the Ebola virus has been called catastrophic. The Ebola epidemic has killed more than 1,000 people in four West African countries and has overwhelmed the Liberian health system. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: A burial team from the Liberian health department removes the body of a woman suspected of dying of the Ebola virus from her home on August 14, 2014 in Monrovia, Liberia. Teams are picking up bodies from all over the capital of Monrovia, where the spread of the Ebola virus has been called catastrophic. The Ebola epidemic has killed more than 1,000 people in four West African countries and has overwhelmed the Liberian health system. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 14: A burial team from the Liberian health department sprays disinfectant over the body of a woman suspected of dying of the Ebola virus on August 14, 2014 in Monrovia, Liberia. Teams are picking up bodies from all over the capital of Monrovia, where the spread of the Ebola virus has been called catastrophic. The Ebola epidemic has killed more than 1,000 people in four West African countries and has overwhelmed the Liberian health system. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 13: People pray at an Evangelical Christian church on August 13, 2014 in Monrovia, Liberia. A Delta Airlines flight had just brought the Ebola-flighting experimental ZMapp drug, which the Liberian government says will be used to treat Liberian doctors infected by the deadly virus. The current Ebola epidemic has killed more than 1,000 people in four West African countries. (Photo by John Moore/Getty Images)

MONROVIA, LIBERIA - AUGUST 13: Liberian Foreign Affairs Minister Augustine Ngafuan hand-carries boxes of the experimental Ebola-fighting drug ZMapp on a Delta Airlines flight from New York's JFK airport to Monrovia on August 13, 2014 in Monrovia, Liberia. The Liberian government says the drug is meant to be used to treat Liberian doctors infected by the deadly virus which has killed more than 1,000 people in four West African countries. (Photo by John Moore/Getty Images)

A woman washes clothes in the Kroo town slum in Freetown on August 13, 2014. The World Health Organisation (WHO) revealed that the latest death toll from the Ebola virus in Guinea, Sierra Leone, Liberia and Nigeria had claimed more than1000 lives. Health Organisations are looking into the possible use of experimental drugs to combat the latest outbreak in West Africa which is also the largest ebola outbreak in history. AFP PHOTO/Carl de Souza (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

Young boys play football in the rain in Freetown on August 13, 2014. The World Health Organisation (WHO) revealed that the latest death toll from the Ebola virus in Guinea, Sierra Leone, Liberia and Nigeria had claimed more than1000 lives. Health Organisations are looking into the possible use of experimental drugs to combat the latest outbreak in West Africa which is also the largest ebola outbreak in history. AFP PHOTO/Carl de Souza (Photo credit should read CARL DE SOUZA/AFP/Getty Images)

A doctor of the national public health institute controls the temperature of a woman at the airport, in Abidjan on August 13, 2014, as part of protective measures against the Ebola virus. The Ivory Coast announced on August 11 that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation. AFP PHOTO/ SIA KAMBOU (Photo credit should read SIA KAMBOU/AFP/Getty Images)

A man stands next to a tent set up to treat Ebola patients on August 12, 2014 in Monrovia. Liberia, one of the hardest hit by the killer virus, said it had requested samples of an experimental drug and that supplies would be brought into the country 'by a representative of the US government' later this week. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A man, wearing a protective mask, poses in front of an isolation center for people suffering from the Ebola virus, on August 12, 2014 at the airport in Abidjan. The Ivory Coast announced on the eve that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation. AFP PHOTO/ SIA KAMBOU (Photo credit should read SIA KAMBOU/AFP/Getty Images)

An agent of the national public health institute poses with a thermometer at the airport, in Abidjan on August 12, 2014, as part of protective measures against the Ebola virus. The Ivory Coast announced on the eve that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation. AFP PHOTO/ SIA KAMBOU (Photo credit should read SIA KAMBOU/AFP/Getty Images)

LONDON, ENGLAND - AUGUST 12: A general view of a High Level Isolation Unit at the Royal Free hospital on August 12, 2014 in London, England. The Royal Free hospital houses two High Level Isolation Units at their High Secure Infectious Disease Unit. The Ebola virus has already killed more than 1000 people in Africa. (Photo by Dan Kitwood/Getty Images)

LONDON, ENGLAND - AUGUST 12: Senior Matron Breda Athan demonstrates the procedure when preparing to treat potential patients with Ebola on August 12, 2014 in London, England. The Royal Free Hospital houses two High Level Isolation Units at their High Secure Infectious Disease Unit. The Ebola virus has already killed more than 1000 people in Africa. (Photo by Dan Kitwood/Getty Images)

LONDON, ENGLAND - AUGUST 12: A general view of a High Level Isolation Unit at the Royal Free hospital on August 12, 2014 in London, England. The Royal Free hospital houses two High Level Isolation Units at their High Secure Infectious Disease Unit. The Ebola virus has already killed more than 1000 people in Africa. (Photo by Dan Kitwood/Getty Images)

A woman, wearing a protective face mask and gloves, speaks to a worker upon arrival at the Murtala Muhammed Airport in Lagos on August 11, 2014. Nigeria confirmed a new case of Ebola in the financial capital Lagos, bringing the total number of people in the country with the virus to 10. AFP PHOTO/PIUS UTOMI EKPEI (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)

Passengers, wearing protective face masks and hand gloves push troleys loaded with personal effects upon arrival at the Murtala Mohammed Airport in Lagos on August 11, 2014. Nigeria confirmed a new case of Ebola in the financial capital Lagos, bringing the total number of people in the country with the virus to 10. AFP PHOTO/PIUS UTOMI EKPEI (Photo credit should read PIUS UTOMI EKPEI/AFP/Getty Images)

(From L) Ivory Coast's government spokesman Bruno Kone and Health Minister Raymonde Goudou Coffi give a press conference on August 11, 2014 in Abidjan. The Ivory Coast announced Monday that it has banned all flights from countries hit by Ebola as part of steps to prevent the deadly virus from reaching the west African nation. AFP PHOTO / ISSOUF SANOGO (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)

Infectious disease specialist Florian Steiner wears protective clothing as he works in a laboratory for blood tests during a demonstration of the proceedings at the quarantine office of Berlin's Charite hospital on August 11, 2014. The quarantine ward is prepared to receive persons sick with tropical diseases, like people infected with the deadly Ebola virus for example. AFP PHOTO / DPA / TIM BRAKEMEIER / GERMANY OUT (Photo credit should read TIM BRAKEMEIER/AFP/Getty Images)

Infectious disease specialist Florian Steiner (L) and quarantine office leader Thomas Klotzkowski disinfect themselves during a demonstration of the proceedings at the ward of Berlin's Charite hospital on August 11, 2014. The quarantine ward is prepared to receive persons sick with tropical diseases, like people infected with the deadly Ebola virus for example. AFP PHOTO / DPA / TIM BRAKEMEIER / GERMANY OUT (Photo credit should read TIM BRAKEMEIER/AFP/Getty Images)

BERLIN, GERMANY - AUGUST 11: A doctor for tropical medicine wearing an isolation suit speaks to journalists during a demonstration for the media of ebola treatment capabilities at Station 59 at Charite hospital on August 11, 2014 in Berlin, Germany. The specialized quarantine unit at Station 59 is among a handful of facilities in Germany nationwide that are capable of handling ebola cases. According to media reports a German medical student currently in Ruanda is showing signs of the disease, though should he in fact have ebola it is so far unclear whether he would be flown to Germany for treatment. The disease has so far claimed over 1,000 lives in western Africa in recent weeks. (Photo by Sean Gallup/Getty Images)

Coulibaly Daouda, head of the epidemiological department at the national public health institute in Abidjan poses as he holds a poster reading ''Ebola fever'', on August 8, 2014. The World Health Organization declared the killer Ebola epidemic ravaging parts of west Africa an international health emergency and appealed for global aid to help afflicted countries. States of emergency have been declared in the hardest hit countries of Guinea, Liberia and Sierra Leone, while two people have died in Nigeria and Benin is investigating a suspect patient. AFP PHOTO/ SIA KAMBOU (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)

Ugandan medical staff disinfect a desk bearing a poster reading ''Ebola'' at the Entebbe International Airport on August 8, 2014. Uganda said on August 8 a man put in isolation with fever had tested negative for the deadly tropical disease Ebola. The passenger was the first to be tested in east Africa in the current outbreak sweeping west Africa, although Uganda has suffered Ebola outbreaks in the past, most recently in 2012. AFP PHOTO/ISAAC KASAMANI (Photo credit should read ISAAC KASAMANI/AFP/Getty Images)

Ugandan medical staff put on protective clothing as boxes containing face masks and gloves are sitting on a poster reading ''Ebola'' at the International Airport on August 8, 2014, in Entebbe. Uganda said on August 8 a man put in isolation with fever had tested negative for the deadly tropical disease Ebola. The passenger was the first to be tested in east Africa in the current outbreak sweeping west Africa, although Uganda has suffered Ebola outbreaks in the past, most recently in 2012. AFP PHOTO/ISAAC KASAMANI (Photo credit should read ISAAC KASAMANI/AFP/Getty Images)

World Health Organization (WHO) Director-General Dr. Margaret Chan with assistant director-general for health security Keiji Fukuda  on August 8, 2014 in Geneva give a press conference following a two-day emergency meeting on west Africa's Ebola epidemic, as the death toll nears 1,000.  AFP PHOTO / Alain GROSCLAUDE     (Photo credit should read ALAIN GROSCLAUDE/AFP/Getty Images)

World Health Organization (WHO) Director-General Dr. Margaret Chan with assistant director-general for health security Keiji Fukuda  on August 8, 2014 in Geneva give a press conference following a two-day emergency meeting on west Africa's Ebola epidemic, as the death toll nears 1,000.  The UN health body said its emergency committee, which includes global medical and policy experts, had declared the deadliest known outbreak of the Ebola virus a 'public health emergency of international concern'. AFP PHOTO / Alain GROSCLAUDE (Photo credit should read ALAIN GROSCLAUDE/AFP/Getty Images)

A nurse wears protective clothing as he demonstrates the facilities in place at the Royal Free Hospital in north London on August 6, 2014, in preparation for a patient testing positive for the Ebola virus. The specialised unit allows a team of doctors and nurses to provide care for anyone with the contagious condition. Despite it's high mortality level, Consultant Stephen Mepham advised against panic, stating that the chances of meeting an undiagnosed patient are virtually impossible with next to no chance of catching the virus without exposure to the sufferer's bodily fluids. AFP PHOTO/Leon Neal (Photo credit should read LEON NEAL/AFP/Getty Images)

A nurse wears protective clothing as he demonstrates the facilities in place at the Royal Free Hospital in north London on August 6, 2014, in preparation for a patient testing positive for the Ebola virus. The specialised unit allows a team of doctors and nurses to provide care for anyone with the contagious condition. Despite it's high mortality level, Consultant Stephen Mepham advised against panic, stating that the chances of meeting an undiagnosed patient are virtually impossible with next to no chance of catching the virus without exposure to the sufferer's bodily fluids. AFP PHOTO/Leon Neal (Photo credit should read LEON NEAL/AFP/Getty Images)

Members of Women in Peace Building Network (WIPNET) pray on August 6, 2014 on a field not far from the residence of Liberia's president, in Monrovia, to drive away Ebola from Liberia. A Spanish air force plane left on August 6 for Liberia to fly home a 75-year-old Spanish missionary infected with Ebola, the first patient to be returned to Europe in a fast-spreading outbreak of the deadly disease. The death toll of the Ebola epidemic neared 1,000 on August 6 as fears rose that the disease is now taking hold in Africa's most populous nation of Nigeria after a second death among seven confirmed cases in Lagos. The spread of the disease comes as the World Health Organization (WHO) met in an emergency session in Geneva to decide whether to declare an international crisis. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Members of Women in Peace Building Network (WIPNET) pray on August 6, 2014 on a field not far from the residence of Liberia's president, in Monrovia, to drive away Ebola from Liberia. A Spanish air force plane left on August 6 for Liberia to fly home a 75-year-old Spanish missionary infected with Ebola, the first patient to be returned to Europe in a fast-spreading outbreak of the deadly disease. The death toll of the Ebola epidemic neared 1,000 on August 6 as fears rose that the disease is now taking hold in Africa's most populous nation of Nigeria after a second death among seven confirmed cases in Lagos. The spread of the disease comes as the World Health Organization (WHO) met in an emergency session in Geneva to decide whether to declare an international crisis. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

Members of Women in Peace Building Network (WIPNET) pray on August 6, 2014 on a field not far from Liberia's president residency, in Monrovia, to drive away Ebola from Liberia. A Spanish air force plane left on August 6 for Liberia to fly home a 75-year-old Spanish missionary infected with Ebola, the first patient to be returned to Europe in a fast-spreading outbreak of the deadly disease. The death toll of the Ebola epidemic neared 1,000 on August 6 as fears rose that the disease is now taking hold in Africa's most populous nation of Nigeria after a second death among seven confirmed cases in Lagos. The spread of the disease comes as the World Health Organization (WHO) met in an emergency session in Geneva to decide whether to declare an international crisis. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A boy walks on July 31, 2014 through an empty class room in a school in Monrovia which has been closed down by the Liberian government like all schools through out the country to protect students from contracting Ebola. Liberia announced on July 30 it was shutting all schools and placing 'non-essential' government workers on 30 days' leave in a bid to halt the spread of the deadly Ebola epidemic raging in west Africa. The impoverished country, along with neighbouring Guinea and Sierra Leone, is struggling to contain an epidemic that has infected 1,200 people and left 672 dead across the region since the start of the year. AFP PHOTO / STRINGER (Photo credit should read STRINGER/AFP/Getty Images)

A picture taken on July 24, 2014 shows a staff member of the Christian charity Samaritan's Purse spraying product as he treats the premises outside the ELWA hospital in the Liberian capital Monrovia. An American doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A picture taken on July 24, 2014 shows staff of the Christian charity Samaritan's Purse putting on protective gear in the ELWA hospital in the Liberian capital Monrovia. An American doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A picture taken on July 24, 2014 shows staff of the Christian charity Samaritan's Purse putting on protective gear in the ELWA hospital in the Liberian capital Monrovia. An American doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A 10-year-old boy walks with a doctor from Christian charity Samaritan's Purse, after being taken out of quarantine and receiving treatment following his mother's death caused by the ebola virus, in the group's Ebola treatment center, at the ELWA hospital in the Liberian capital Monrovia, on July 24, 2014. A US doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A picture taken on June 28, 2014 shows Red Cross staff preparing a body for burial at the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A picture taken on June 28, 2014 shows a member of Doctors Without Borders (MSF) putting on protective gear at the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A picture taken on June 28, 2014 shows members of Doctors Without Borders (MSF) putting on protective gear at the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

TO GO WITH AFP STORY BY MOUCTAR BAH AND ZOOM DOSSO A picture taken on June 25, 2014 shows Guinean women washing their hands at the entrance of the Sino-Guinean hospital of Kipe in the Ratoma municipality, where the first person infected with the Ebola virus was treated in Conakry. An epidemic of the deadly Ebola virus in West Africa is now 'out of control' with more than 60 outbreak hotspots, the medical charity Doctors Without Borders (MSF) said on June 23. After the first reported cases in Guinea at the start of the year, at least 337 people have died from Ebola in the three countries in 2014, according to data released last week by the World Health Organization. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A man drives his motorcycle past the Redemption hospital, on June 23, 2014 in Monrovia. This hospital, where seven people died from Ebola is about to be shutdown by authorities as workers have abandoned the hospital for fear of more deaths from the deadly Ebola virus. The death toll in west Africa's three-nation Ebola outbreak has risen to 337, the World Health Organisation said on June 18, 2014, making it the deadliest ever outbreak of the haemorrhagic fever.AFP PHOTO ZOUM DOSSO (Photo credit should read ZOUM DOSSO/AFP/Getty Images)

Health workers speak to relatives of peolpe infected with Ebola at an isolation center at Donka Hospital in Conakry on April 14, 2014. Guinea's Foreign Minister Francois Fall said on April 14 that the west African country had brought the spread of the deadly Ebola virus under control after more than 100 people have died. The outbreak is one of the most deadly, with 168 cases 'clinically compatible' with Ebola virus disease reported, including 108 deaths, the World Health Organization (WHO) said in its latest update on April 14. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Health workers walk in an isolation center for people infected with Ebola at Donka Hospital in Conakry on April 14, 2014. Guinea's Foreign Minister Francois Fall said on April 14 that the west African country had brought the spread of the deadly Ebola virus under control after more than 100 people have died. The outbreak is one of the most deadly, with 168 cases 'clinically compatible' with Ebola virus disease reported, including 108 deaths, the World Health Organization (WHO) said in its latest update on April 14. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A members of the Guinean Red Cross gives some information to residents during an awareness campaign on the Ebola virus on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A member of the Guinean Red Cross uses a megaphone to give information concerning the Ebola virus during an awareness campaign on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Members of the Guinean Red Cross walk during an awareness campaign on the Ebola virus on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Employees of the sanitary control of Conakry airport check passengers before they leave the country on April 10, 2014. International aid organisations launched a series of emergency measures across west Africa on Thursday in a bid to contain one of the worst ever outbreaks of the deadly Ebola virus, which is threatening every country in the region. The tropical bug is thought to have killed more than 110 people in Guinea and Liberia since January, with suspected cases reported in Mali and Sierra Leone and aid workers warning that vital hygiene products could run out. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A Senegalese hygienist demonstrates how to protect oneself against the Ebola virus on April 8, 2014 at Dakar airport, during a visit of the Senegalese health minister to check the safety measures put in place to fight against the virus' spread in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A Senegalese hygienist puts a protective suit on as he demonstrates how to protect oneself against the Ebola virus on April 8, 2014 at Dakar airport, during a visit of the Senegalese health minister to check the safety measures put in place to fight against the virus' spread in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A Senegalese hygienist demonstrates how to protect oneself against the Ebola virus on April 8, 2014 at Dakar airport, during a visit of the Senegalese health minister to check the safety measures put in place to fight against the virus' spread in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Monia Sayah (Center R), a nurse working with the 'Doctors without Borders' ('Medecin sans frontieres') medical aid organisation, speaks to Guinean hospital staff on April 1, 2014, in Guekedou, during a talk about viral haemorrhagic fever. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Health specialists work at an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A health specialist works in a laboratory set up in a tent at an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Two members of the Guinean Red Cross, in protective gear, arrive on March 31, 2014 to evacuate the bodies of two people who died from the Ebola virus in an isolation ward at the Donka hospital in Conakry, Guinea. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing at least 78 people in Guinea was an 'unprecedented epidemic' that had spread across the west African nation. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Workers and medical staff listen on March 31, 2014 to a doctor as patients' relatives wait outside the security perimeter at the isolation ward of the Donka hospital in Conakry, Guinea. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing at least 78 people in Guinea was an 'unprecedented epidemic' that had spread across the west African nation. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A health worker in light protective gear walks on March 31, 2014 in the yard of the isolation ward of the Donka hospital in Conakry, Guinea. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing at least 78 people in Guinea was an 'unprecedented epidemic' that had spread across the west African nation. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Relatives wait on March 31, 2014 outside the isolation ward of the Donka hospital in Conakry, Guinea. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing at least 78 people in Guinea was an 'unprecedented epidemic' that had spread across the west African nation. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A general view taken on March 31, 2014 shows the isolation ward of the Donka hospital in Conakry, Guinea. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing at least 78 people in Guinea was an 'unprecedented epidemic' that had spread across the west African nation. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Doctors in protective gear work on March 31, 2014 inside the medical humanitarian group Medecins Sans Frontieres (Doctors without Borders) isolation ward in the southern Guinean town of Gueckedou. Aid organisation Doctors Without Borders said on March 31 an Ebola outbreak suspected of killing dozens in Guinea was an 'unprecedented epidemic' as Liberia confirmed its first cases of the deadly contagion. Guinea's health ministry this year has reported 122 'suspicious cases' of viral haemorrhagic fever, including 78 deaths, with 22 of the samples taken from patients testing positive for the highly contagious tropical pathogen. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Health specialists prepare for work in an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A health specialist works in a laboratory set up in a tent at an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Health specialists prepare for work in an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Health specialists prepare for work in an isolation ward for patients at the Doctors Without Borders facility in Guékedou, southern Guinea. Guinea's President Alpha Conde warned of a 'health emergency' as authorities raced to contain a spiraling Ebola epidemic which has killed 78 people and prompted neighboring Senegal to close its border. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Staff of the 'Doctors without Borders' ('Medecin sans frontieres') medical aid organisation carry the body of a person killed by viral haemorrhagic fever, at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Staff of the 'Doctors without Borders' ('Medecin sans frontieres') medical aid organisation carry the body of a person killed by viral haemorrhagic fever, at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A view of gloves and boots used by medical staff, drying in the sun, at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Staff of the 'Doctors without Borders' ('Medecin sans frontieres') medical aid organisation bury the body of a person killed by viral haemorrhagic fever, at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A medical staff worker of the 'Doctors without Borders' ('Medecin sans frontieres') medical aid organisation is assisted with the disinfecting of his gloves at a center for victims of the Ebola virus in Guekedou, on April 1, 2014. The viral haemorrhagic fever epidemic raging in Guinea is caused by several viruses which have similar symptoms -- the deadliest and most feared of which is Ebola. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

People walk past the sign of a 'maquis,' a small African restaurant which serves bushmeat, in Kobakro, outside Abidjan, on April 8, 2014. The Ministry of Health has asked Ivorians, 'particularly fond of porupine and agouti,' a small rodent, to avoid consuming or handling the meat, as an unprecedented Ebola epidemic hit West Africa, claiming more than 90 lives. The virus can spread to animal primates and humans who handle infected meat -- a risk given the informal trade in 'bushmeat' in forested central and west Africa. AFP PHOTO / ISSOUF SANOGO (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)

A Senegalese hygienist puts a protective suit on as he demonstrates how to protect oneself against the Ebola virus on April 8, 2014 at Dakar airport, during a visit of the Senegalese health minister to check the safety measures put in place to fight against the virus' spread in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A Senegalese hygienist demonstrates how to protect oneself against the Ebola virus on April 8, 2014 at Dakar airport, during a visit of the Senegalese health minister to check the safety measures put in place to fight against the virus' spread in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

Senegal's health minister Awa Marie Coll Seck (3rd L) listens to Alioune Fall (R), chief doctor of Dakar airport, as she visits Dakar airport on April 8, 2014 to check the safety measures put in place to fight against the spread of the Ebola virus in western Africa. West Africa's Ebola outbreak is among the 'most challenging' ever to strike since the disease emerged four decades ago, the World Health Organisation (WHO) said on April 8, as the suspected death toll from the virus hit 111. AFP PHOTO / SEYLLOU (Photo credit should read SEYLLOU/AFP/Getty Images)

A member of the Guinean Red Cross uses a megaphone to give information concerning the Ebola virus during an awareness campaign on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Members of the Guinean Red Cross walk during an awareness campaign on the Ebola virus on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Members of the Guinean Red Cross distribute information leaflets during an awareness campaign on the Ebola virus on April 11, 2014 in Conakry. Guinea has been hit by the most severe strain of the virus, known as Zaire Ebola, which has had a fatality rate of up to 90 percent in past outbreaks, and for which there is no vaccine, cure or even specific treatment. The World Health Organization (WHO) has described west Africa's first outbreak among humans as one of the most challenging since the virus emerged in 1976 in what is now the Democratic Republic of Congo. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Health workers speak to relatives of peolpe infected with Ebola at an isolation center at Donka Hospital in Conakry on April 14, 2014. Guinea's Foreign Minister Francois Fall said on April 14 that the west African country had brought the spread of the deadly Ebola virus under control after more than 100 people have died. The outbreak is one of the most deadly, with 168 cases 'clinically compatible' with Ebola virus disease reported, including 108 deaths, the World Health Organization (WHO) said in its latest update on April 14. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A picture taken on June 28, 2014 shows Red Cross staff preparing a body for burial at the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

TO GO WITH AFP STORY BY MOUCTAR BAH AND ZOOM DOSSO A picture taken on June 25, 2014 shows Guinean women washing their hands at the entrance of the Sino-Guinean hospital of Kipe in the Ratoma municipality, where the first person infected with the Ebola virus was treated in Conakry. An epidemic of the deadly Ebola virus in West Africa is now 'out of control' with more than 60 outbreak hotspots, the medical charity Doctors Without Borders (MSF) said on June 23. After the first reported cases in Guinea at the start of the year, at least 337 people have died from Ebola in the three countries in 2014, according to data released last week by the World Health Organization. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A picture taken on June 28, 2014 shows members of Doctors Without Borders (MSF) putting on protective gear at the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A picture taken on June 28, 2014 shows protective boots hanging upside down in the isolation ward of the Donka Hospital in Conakry, where people infected with the Ebola virus are being treated. The World Health Organization has warned that Ebola could spread beyond hard-hit Guinea, Liberia and Sierra Leone to neighbouring nations, but insisted that travel bans were not the answer. To date, there have been 635 cases of haemorrhagic fever in Guinea, Liberia and Sierra Leone, most confirmed as Ebola. A total of 399 people have died, 280 of them in Guinea. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

Members of Doctors Without Borders (MSF) wear protective gear at the isolation ward of the Donka Hospital in Conakry on July 23, 2014. A Liberian man has been hospitalised in Lagos with Ebola-like symptoms, but it is not yet clear if he is infected with the killer virus, Nigerian officials said on July 24. A regional centre was set up in Guinea to coordinate the response to the worst-ever outbreak of Ebola that has killed hundreds of people in west Africa, the World Health Organisation said on July 11. AFP PHOTO / CELLOU BINANI (Photo credit should read CELLOU BINANI/AFP/Getty Images)

A 10-year-old boy walks with a doctor from Christian charity Samaritan's Purse, after being taken out of quarantine and receiving treatment following his mother's death caused by the ebola virus, in the group's Ebola treatment center, at the ELWA hospital in the Liberian capital Monrovia, on July 24, 2014. A US doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A 10-year-old boy receives treatment after being taken out of quarantine following his mother's death caused by the ebola virus, in the Christian charity Samaritan's Purse Ebola treatment center, at the ELWA hospital in the Liberian capital Monrovia, on July 24, 2014. A US doctor battling West Africa's Ebola epidemic has himself fallen sick with the disease in Liberia, Samaritan's Purse said on July 27. AFP PHOTO / ZOOM DOSSO (Photo credit should read ZOOM DOSSO/AFP/Getty Images)

A woman shares a tender moment with her pet during international dog sled race 'Zavirukha' (Snow Storm) in the Belarus capital Minsk on February 22, 2014. About 140 athletes from Belarus, Russia, Latvia and Lithuania take part in competitions. (VIKTOR DRACHEV/AFP/Getty Images)

This picture taken on February 16, 2014 shows six month old giant panda cub Long Long eating bamboo in an enclosure in Chimelong Safari Park in Guangzhou. Giant pandas, notorious for their low sex drive, are among the world's most endangered animals. Fewer than 1,600 pandas remain in the wild, mainly in China's Sichuan province, with a further 300 in captivity around the world.(STR/AFP/Getty Images)

A barbary macaque (Macaca sylvanu) monkey carries a baby on its back in a forest near the Moroccan town of Azrou, in the middle Atlas mountain chain, on February 19, 2014. Britain's tiny outpost of Gibraltar has announced it will crack down on pesky Barbary macaque monkeys by exporting them off the Rock, sending some of them back to their native habitat in the North African Atlas mountains. (FADEL SENNA/AFP/Getty Images)

HUNTINGDON, ENGLAND - FEBRUARY 20: Horses and jockeys jump the ditch during the Stanjames.com Handicap Steeple chase at Huntingdon racecourse on February 20, 2014 in Huntingdon, England. (Photo by Jamie McDonald/Getty Images)

A participant competes during international dog sled race 'Zavirukha' (Snow Storm) in the Belarus capital Minsk on February 22, 2014. About 140 athletes from Belarus, Russia, Latvia and Lithuania take part in competitions. (VIKTOR DRACHEV/AFP/Getty Images)

Gray langur mother Sally holds her baby in its enclosure in Berlin's Zoo on February 21, 2014 in Berlin. Gray langurs live in a community in which a single male lives together with several females and their offsprings. (JOHANNES EISELE/AFP/Getty Images)

Staff members hold a mother Blotched Blue-Tongue lizard (C) and its seven babies during their first time display at the Wild Life Sydney Zoo on February 18, 2014. The Blotched Blue-Tongue lizards which were born at the Wild Life Zoo were released into their new exhibit for the first time. (SAEED KHAN/AFP/Getty Images)

A capybara and its litter remain in an area flooded by the overflowing of the Mamore river during heavy rains in the outskirts of Trinidad, Bolivia, on February 17, 2014. The Bolivian government declared national emergency as rains have left 56 people dead and over 58.600 families affected. (AIZAR RALDES/AFP/Getty Images)

A starling sings on the Galata bridge over the Bosphorus in Istanbul on February 19, 2014, as heavy fog wraps the city. (BULENT KILIC/AFP/Getty Images)

Barbary macaque (Macaca sylvanu) monkeys climb on a car in a forest near the Moroccan town of Azrou, in the middle of the Atlas mountain chain, on February 19, 2014. Britain's tiny outpost of Gibraltar has announced it will crack down on pesky Barbary macaque monkeys by exporting them off the Rock, sending some of them back to their native habitat in the North African Atlas mountains. (FADEL SENNA/AFP/Getty Images)

RIO DE JANEIRO, BRAZIL - FEBRUARY 22: A decorated dog looks on at a 'bloco' party during pre-Carnival festivities on February 22, 2014 in Rio de Janeiro, Brazil. Carnival officially begins on February 28 but pre-festivities have already begun. (Photo by Mario Tama/Getty Images,)

A baby barbary macaque (Macaca sylvanu) is seen in a forest near the Moroccan town of Azrou, in the middle Atlas mountain chain, on February 19, 2014. Britain's tiny outpost of Gibraltar has announced it will crack down on pesky Barbary macaque monkeys by exporting them off the Rock, sending some of them back to their native habitat in the North African Atlas mountains. (FADEL SENNA/AFP/Getty Images)

HOLT, GERMANY - FEBRUARY 19: Nasar, an Arabian horse, runs outside the house of doctor Stephanie Arndt on February 19, 2014 in Holt, Germany. Fearing for the horse's safety, Mrs. Arndt brought the horse into her house during the Xaver heavy storm back in December, and the horse now wanders through the house daily, inspecting details and looking for snacks. Mrs. Arndt says she doesn't mind, and though the horse never spends the night, it does occasionally take a nap in the house. (Photo by Patrick Lux/Getty Images)

An Indian slim-monkey eats a carrot in its enclosure in Berlin's Zoo on February 21, 2014 in Berlin. Gray langurs live in a community in which a single male lives together with several females and their offsprings. (JOHANNES EISELE/AFP/Getty Images)

A capybara and its litter swim in an area flooded by the overflowing of the Mamore river during heavy rains in the outskirts of Trinidad, Bolivia, on February 17, 2014. The Bolivian government declared national emergency as rains have left 56 people dead and over 58.600 families affected. (AIZAR RALDES/AFP/Getty Images)

This picture taken on February 16, 2014 shows six month old giant panda cub Long Long playing in an enclosure in Chimelong Safari Park in Guangzhou. Giant pandas, notorious for their low sex drive, are among the world's most endangered animals. Fewer than 1,600 pandas remain in the wild, mainly in China's Sichuan province, with a further 300 in captivity around the world. (STR/AFP/Getty Images)

Seagulls take refuge in the Seven Sisters Country Park near Seaford Head as the latest storm continues across the south of England on February 15, 2014. (GLYN KIRK/AFP/Getty Images)

A German Shepherd puppy frolics in the snow during a major snowstorm February 13, 2014 in Manassas, Virginia. The biggest storm of the season dumped a thick snow blanket on the Washington, DC area overnight and early Thursday, shutting down the federal government, local schools, courts and government offices, airports and Metros bus service. (KAREN BLEIER/AFP/Getty Images)

A cat takes part in the animals' carnival parade 'Blocao', at Copacabana in Rio de Janeiro on February 16 , 2014. (CHRISTOPHE SIMON/AFP/Getty Images)

A dog takes part in the animals' carnival parade 'Blocao', at Copacabana in Rio de Janeiro on February 16 , 2014. (CHRISTOPHE SIMON/AFP/Getty Images)

A Sri Lankan mahout walks alongside his elephant as he meanders down a street in Colombo on February 16, 2014. The Sri Lankan elephant is listed as endangered by the International Union for Conservation of Nature (IUCN) as the population has declined by at least 50% over the last three generations, with the species threatened by habitat loss, degradation and fragmentation. (Ishara S.KODIKARA/AFP/Getty Images)

CHERTSEY, UNITED KINGDOM - FEBRUARY 16: A man walks his dog through flood water on Chertsey Meads on February 15, 2014 in Chertsey, England. Housing near the river Thames has suffered a week of flooding after the river burst it's banks on February 10, 2014. (Photo by Peter Macdiarmid/Getty Images)

A dog is held by its owner on February 16, 2014, in Istanbul. Animal rights activists gathered on Istiklal avenue to callfor new Turkish parliamentary laws for animal rights. (BULENT KILIC/AFP/Getty Images)

In a picture taken on February 12, 2014 a woman feeds seagulls at Botahtaung Jetty in Yangon. The World Bank announced on January 26 a USD 2 billion development programme for Myanmar, including projects to improve access to energy and healthcare in the impoverished former military-ruled nation. (Ye Aung Thu/AFP/Getty Images)

Monkeys endure the cold under snow at Ueno Zoo in Tokyo on February 14, 2014. Heavy winter weather is expected to hit Tokyo's metropolitan area again, bringing with it an estimated 10cm of snow. (TORU YAMANAKA/AFP/Getty Images)

A painted dog takes part in the animals' carnival parade 'Blocao', at Copacabana in Rio de Janeiro on February 16 , 2014. (CHRISTOPHE SIMON/AFP/Getty Images)

A monkey endures the cold under snow at Ueno Zoo in Tokyo on February 14, 2014. Heavy winter weather is expected to hit Tokyo's metropolitan area again, bringing with it an estimated 10cm of snow. (TORU YAMANAKA/AFP/Getty Images)

A dog chases a sledder in Rock Creek Park in Washington, DC February 13, 2014. The DC area received its first significant winter storm beginning Wednesday night February 12th, with continued mixed winter weather expected throughout Thursday. The latest brutal freeze to hammer the eastern states of the country since the start of the year has been dubbed 'snowmaggedon,' 'mind-boggling' and 'historic' by major television networks and forecasters. (BRENDAN SMIALOWSKI/AFP/Getty Images)

A German Shepherd puppy frolics in the snow during a major snowstorm February 13, 2014 in Manassas, Virginia. The biggest storm of the season dumped a thick snow blanket on the Washington, DC area overnight and early Thursday, shutting down the federal government, local schools, courts and government offices, airports and Metros bus service. (KAREN BLEIER/AFP/Getty Images)

A baby deer and geese are seen in a snow-covered field in Church Hill, Maryland, in the Washington-Baltimore area February 13, 2014, after a heavy snow hit the Eastern United States. The latest brutal freeze to hammer the eastern states of the country since the start of the year has been dubbed 'snowmaggedon,' 'mind-boggling' and 'historic' by major television networks and forecasters. (JIM WATSON/AFP/Getty Images)

A German Shepherd puppy frolics in the snow during a major snowstorm February 13, 2014 in Manassas, Virginia. The biggest storm of the season dumped a thick snow blanket on the Washington, DC area overnight and early Thursday, shutting down the federal government, local schools, courts and government offices, airports and Metros bus service. (KAREN BLEIER/AFP/Getty Images)

MELBOURNE, AUSTRALIA - FEBRUARY 07: As the temperatures are expected to reach high thirty's this afternoon, horses go through their paces during a trackwork session at Flemington Racecourse on February 7, 2014 in Melbourne, Australia. (Photo by Vince Caligiuri/Getty Images)

A two-month-old Black Panther cub looks on during a presentation in a zoo in St. Petersburg, on February 5, 2014. (OLGA MALTSEVA/AFP/Getty Images)

A three-week young white-faced saki (Pithecia pithecia) baby (L) is seen on its mother in zoo park of Szeged town on February 7, 2014, also known as the Guianan saki and the golden-faced saki, is a species of saki monkey, a type of New World monkey, found in Brazil, French Guiana, Guyana, Suriname and Venezuela. The small monkey was born in middle of January. (CSABA SEGESVARI/AFP/Getty Images)

(FILES) - Picture taken on Febuary 7, 2014 shows a perfectly healthy young giraffe named Marius who was shot dead and autopsied in the presence of visitors to the gardens at Copenhagen zoo on Febuary 9, 2014 despite an online petition to save it signed by thousands of animal lovers. Marius, an 18-month-old giraffe, was put down with a bolt gun early on Sunday, zoo spokesman Tobias Stenbaek Bro confirmed. (KELD NAVNTOFT/AFP/Getty Images)

The Sumatra Orang-Utan Matra holds her one week old baby in the enclosure at the zoo Hellabrunn in Munich, southern Germany on February 7, 2014. The little Orang-Utan baby was born in the zoo on January 31, 2014 and hasn't been named yet. (CHRISTOF STACHE/AFP/Getty Images)

Wild pheasant walks on the field near Radzymin, 40 kms from Warsaw on February 7, 2014. (JANEK SKARZYNSKI/AFP/Getty Images)

PEBBLE BEACH, CA - FEBRUARY 06: A deer is seen during the first round of the AT&T Pebble Beach National Pro-Am at Pebble Beach Golf Links on February 6, 2014 in Pebble Beach, California. (Photo by Jeff Gross/Getty Images)

BAKERSFIELD, CA - FEBRUARY 6: A dog hangs around an abandoned farmhouse on February 6, 2014 near Bakersfield, California. Now in its third straight year of unprecedented drought, California is experiencing its driest year on record, dating back 119 years and possible the worst in the past 500 years. Grasslands that support cattle have dried up, forcing ranchers to feed them expensive supplemental hay to keep them from starving or to sell at least some of their herds, and farmers are struggling with diminishing crop water and whether to plant or to tear out permanent crops which use water year-round like almond trees. About 17 rural communities could run out of drinking water within several weeks and politicians are pushing to undo laws that protect several endangered species. (Photo by David McNew/Getty Images)

NEW YORK, NY - FEBRUARY 06: Pirata, a Portuguese Podengo Pequeno, stands on display as a new breed of dog elligible to compete in the 138th Westminster Kennel Club Dog Show on February 6, 2014 at Madison Square Garden in New York City. Three new breeds, the Chinook, the Portuguese Podengo Pequeno and the Rat Terrier, (L), are eligible to compete for the first time in the show, to be held February 10-11 at Madison Square Garden. This is also the first year for the Masters Agility Championship at Westminster, to be held this Saturday at Pier 94 in New York, ahead of the big event - the annual Westminster Dog Show. (Photo by John Moore/Getty Images)

A two-month-old Black Panther cub looks on during a presentation in a zoo in St. Petersburg, on February 5, 2014. (OLGA MALTSEVA/AFP/Getty Images)

Mother and her child feed birds in the Belarus capital Minsk, on February 6, 2014. (VIKTOR DRACHEV/AFP/Getty Images)

Pigeons sit on a wire next to frost covered trees in Bucharest, on February 5, 2014. Meteorologists forecast temperatures around the freezing point for the Romanian capital. (DANIEL MIHAILESCU/AFP/Getty Images)

CHENGDU, CHINA - JANUARY 28: (CHINA OUT) Giant pandas enjoy themselves at the Chengdu Research Base of Giant Panda Breeding on January 28, 2014 in Chengdu, Sichuan Province of China. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

A fox strolls past the National Gallery of Art on the National Mall in Washington on January 30, 2014. Foxes can be found in and around the city's Rock Creek Park but are not frequently seen in more densely populated areas of the US capital. (CATHERINE MACDOUGALL-KAMM/AFP/Getty Images)

PUNXSUTAWNEY, PA - FEBRUARY 2: Groundhog handler John Griffiths holds Punxsutawney Phil after he saw his shadow predicting six more weeks of winter during 128th annual Groundhog Day festivities on February 2, 2014 in Punxsutawney, Pennsylvania. Groundhog Day is a popular tradition in the United States and Canada. A smaller than usual crowd this year of less than 25,000 people spent a night of revelry awaiting the sunrise and the groundhog's exit from his winter den. If Punxsutawney Phil sees his shadow he regards it as an omen of six more weeks of bad weather and returns to his den. Early spring arrives if he does not see his shadow, causing Phil to remain above ground. (Photo by Jeff Swensen/Getty Images)

PUNXSUTAWNEY, PA - FEBRUARY 2: Groundhog handler Ron Ploucha holds Punxsutawney Phil after he saw his shadow predicting six more weeks of winter during 128th annual Groundhog Day festivities on February 2, 2014 in Punxsutawney, Pennsylvania. Groundhog Day is a popular tradition in the United States and Canada. A smaller than usual crowd this year of less than 25,000 people spent a night of revelry awaiting the sunrise and the groundhog's exit from his winter den. If Punxsutawney Phil sees his shadow he regards it as an omen of six more weeks of bad weather and returns to his den. Early spring arrives if he does not see his shadow, causing Phil to remain above ground. (Photo by Jeff Swensen/Getty Images)

Camels are harnessed to posts before a race during the Sheikh Sultan Bin Zayed al-Nahyan camel festival, held at the Shweihan racecourse, in Al-Ain in the outskirts of Abu Dhabi on February 2, 2014. The festival includes a camel beauty contest, a traditional souq, a camel auction, and competitions for traditional handicrafts. (KARIM SAHIB/AFP/Getty Images)

SOCHI, RUSSIA - FEBRUARY 02: The sun sets behind a stray dog ahead of the Sochi 2014 Winter Olympics on February 2, 2014 in Sochi, Russia. (Photo by Quinn Rooney/Getty Images)

White male tiger Aron hisses in his enclosure in the privately-owned zoo by Andrzej Pabich in Boryszew, central Poland on February 1, 2014. The lion babies were born on January 28. (JANEK SKARZYNSKI/AFP/Getty Images)

A puppy and adult Golden Retriever pose as the 2013 most popular dog breeds in the US are unveiled to the press at the American Kennel Club in New York on January 31, 2014. The top most popular breeds are in order Labrador Retriever, German Shepherd, Golden Retriever, Beagle and Bulldog, including French Bulldog. (EMMANUEL DUNAND/AFP/Getty Images)

A 45-day old hippo swims at Guadalajara Zoo, in Guadalajara city , Mexico on January 30, 2014. (HECTOR GUERRERO/AFP/Getty Images)

A pair of Mute Swans in flight near City Island January 30, 2014 in New York. The New York State Department of Environmental Conservation has proposed declaring the swans a prohibited invasive species and set a goal to eliminate virtually all of the 2,200 swans in the state by 2025. In Britain, wild swans may be prized for their beauty and protected by the Queen, but the US state of New York has declared war on them, branding them a violent menace. Draft proposals to kill or resettle the state's 2,200 wild mute swans by 2025 may be supported by some conservationists but have sparked uproar among animal rights activists. Mute swans were brought to North America by European settlers to adorn their estates in the late 1800s but the authorities no longer consider them a beauty worthy of roaming free. (DON EMMERT/AFP/Getty Images)

A pair of Mute Swans swim in the waters near City Island January 30, 2014 in New York. The New York State Department of Environmental Conservation has proposed declaring the swans a prohibited invasive species and set a goal to eliminate virtually all of the 2,200 swans in the state by 2025. In Britain, wild swans may be prized for their beauty and protected by the Queen, but the US state of New York has declared war on them, branding them a violent menace. Draft proposals to kill or resettle the state's 2,200 wild mute swans by 2025 may be supported by some conservationists but have sparked uproar among animal rights activists. Mute swans were brought to North America by European settlers to adorn their estates in the late 1800s but the authorities no longer consider them a beauty worthy of roaming free. (DON EMMERT/AFP/Getty Images)

A fox walks outside the National Gallery of Art on the National Mall in Washington on January 30, 2014. Foxes can be found in and around the city's Rock Creek Park but are not frequently seen in more densely populated areas of the US capital. (CATHERINE MACDOUGALL-KAMM/AFP/Getty Images)

A picture taken on January 30, 2014 in Merville-Franceville-Plage, northwestern France, shows a cow in a field. (CHARLY TRIBALLEAU/AFP/Getty Images)

A picture taken on January 30, 2014 in Merville-Franceville-Plage, northwestern France, shows a sheep in a field. (CHARLY TRIBALLEAU/AFP/Getty Images)

Pigeons are pictured in a snowy day in a park in Sofia on January 30, 2014. (DIMITAR DILKOFF/AFP/Getty Images)

A stork, called Bedriska, that spends its winters in Vicenice, 40 kms from Brno, sits in its nest on January 29, 2014. Bedriska was injured when it was young and not left and since then stays in the Czech Republic over the winter. (RADEK MICA/AFP/Getty Images)

A German Shepherd puppy experiences snow for the first time during a snowfall January 21, 2014 in Manassas, Virginia. The Washington, DC area and much of the Northeast is under a winter storm warning for Tuesday, with the National Weather Service forecasting 6 to 11 inches of snow by the end of the day. The snow will also come with bitter cold, and the area is also under a wind chill advisory for Tuesday into Wednesday. (KAREN BLEIER/AFP/Getty Images)

A man releases red carps into Hoan Kiem lake in downtown Hanoi as Vietnamese celebrate the traditional Kitchen God Day on January 23, 2014. It is believed that on the twenty third day of the twelfth lunar month, just before the start of the Lunar New Year, the Kitchen God returns to Heaven by riding on a carp to report the activities of every household over the past year to the Jade Emperor who then either rewards or punishes a family based on Kitchen God's yearly report. (HOANG DINH NAM/AFP/Getty Images)

SEATTLE, WA - JANUARY 19: A dog licks it's lips before the Seattle Seahawks take on the San Francisco 49ers in the 2014 NFC Championship at CenturyLink Field on January 19, 2014 in Seattle, Washington. (Photo by Jonathan Ferrey/Getty Images)

Ducks swim on a lake in Bucharest on January 26, 2014. A thick blanket of snow covered southern and eastern Romania causing the closure of three highways, cancelling twenty rail links and disruptions in air traffic. (DANIEL MIHAILESCU/AFP/Getty Images)

A little dog who is blowed by strong wind is watched by a big one during the first snowfall of this year in Bucharest on January 25, 2014. A thick blanket of snow covered Saturday southern and eastern Romania causing the closure of three highways , canceling twenty rail links and disruptions in air traffic. Dozen roads were also closed to traffic Saturday after heavy snowfall since Friday night. . (DANIEL MIHAILESCU/AFP/Getty Images)

Ambar, an Asiatic lion, looks on from an enclosure at the Kamla Nehru Zoological Garden in Ahmedabad on January 23, 2014. The Asiatic lion, listed as endangered by the International Union for Conservation of Nature (IUCN), is found as an isolated population in the Gir Forest of India's Gujarat state. (SAM PANTHAKY/AFP/Getty Images)

Polar bears Freedom and Viktor cuddle each other in the water at the Ouwehands Zoo in Rhenen on January 23, 2014. The two bears were reunited after three years. They lived separate, Freedom together with her cubs and Viktor alone to prevent him of hurting the little ones. (REMKO DE WAAL/AFP/Getty Images)

Janki, an Asiatic lioness, roams in her open enclosure at the Kamla Nehru Zoological Garden in Ahmedabad on January 23, 2014. The Asiatic lion, listed as endangered by the International Union for Conservation of Nature (IUCN), is found as an isolated population in the Gir Forest of India's Gujarat state. (SAM PANTHAKY/AFP/Getty Images)

WASHINGTON, DC - JANUARY 23: Canadian Geese fly near a Washington Metropolitan Police air boat traveling on the frozen Potomac River, January 23, 2014 in Washington, DC. Frigid temperatures have moved into the Washington area causing schools to close and the Federal Government to open late. (Photo by Mark Wilson/Getty Images)

An elephant is seen after members of a team of the NGO International Fund Animal Welfare (IFAW) released it on January 23, 2014 in the Azagny national park, southern Ivory Coast. n operation to displace a dozen elephants from the center to the south of Ivory Coast began on January 19, 2014. According to IFAW, the elephants were forced out of their original homes in Marahoue National Park by human migration possibly related to the West African country's 2010-11 postelection violence.The dozen or so elephants targeted for relocation moved near Daloa two years ago and began wreaking havoc, destroying crops and killing two people including a small boy who accidentally stumbled upon elephant calves, prompting their mother to attack, IFAW said. (SIA KAMBOU/AFP/Getty Images)

A snowy owl sits on the awning of an office building in downtown Washington, DC January 22, 2014 as the US capital reopened for business on Wednesday amid below average temperatures. Snowy Owls, reportedly found in the northern circumpolar region, are a rare sighting in the metro area. (EVA HAMBACH/AFP/Getty Images)

FORT LAUDERDALE, FL - JANUARY 22: A hedgehog is seen during a press conference by the Florida Fish and Wildlife Conservation Commission to encourage people who own exotic pets like the hedgehog to turn them in during the Exotic Pet Amnesty Program on January 22, 2014 in Fort Lauderdale, Florida.The program scheduled for Saturday is an effort to reduce the number of nonnative species being released into the wild by pet owners who can no longer care for their pets or no longer wish to keep them. Amnesty Day events are held around the state to provide the opportunity for people to surrender their nonnative pets free of charge with no penalties. (Photo by Joe Raedle/Getty Images)

FORT LAUDERDALE, FL - JANUARY 22: A red-footed tortoise is seen during a press conference by the Florida Fish and Wildlife Conservation Commission to encourage people who own exotic pets to turn them in during the Exotic Pet Amnesty Program on January 22, 2014 in Fort Lauderdale, Florida.The program scheduled for Saturday is an effort to reduce the number of nonnative species being released into the wild by pet owners who can no longer care for their pets or no longer wish to keep them. Amnesty Day events are held around the state to provide the opportunity for people to surrender their nonnative pets free of charge with no penalties. (Photo by Joe Raedle/Getty Images)

Ducks swim on a lake in Bucharest on January 26, 2014. A thick blanket of snow covered southern and eastern Romania causing the closure of three highways, cancelling twenty rail links and disruptions in air traffic. (DANIEL MIHAILESCU/AFP/Getty Images)

WASHINGTON, DC - JANUARY 21: A squirrel stands in the snow on the National Mall January 21, 2014 in Washington, DC. A strong winter storm is bearing down on the East Coast between Virginia and Massachusetts and could dump four to eight inches of snow on the Washington area. (Photo by Chip Somodevilla/Getty Images)

Birds sit on a wall during a snow storm in New York, January 21, 2014. In New York, a storm alert was issue for noon (1700 GMT) Tuesday to 6:00 am (1100 GMT) Wednesday with as much as a foot (30 centimeters) forecast for the metropolitan region. (EMMANUEL DUNAND/AFP/Getty Images)

Japanese macaque monkeys, known as 'snow monkeys,' take an open-air hot spring bath while snowflakes fall at the Jigokudani (death valley) Monkey Park in the town of Yamanouchi, Nagano prefecture on January 19, 2014. Some 160 of the monkeys inhabit the area and are a popular tourist draw. AFP PHOTO / TOSHIFUMI KITAMURA

VALLEJO, CA - JANUARY 17: Bella, a Bottlenose Dolphin, swims in a pool with her new calf named Mirabella at Six Flags Discovery Kingdom on January 17, 2014 in Vallejo, California. Bella, a nine year-old Bottlenose Dolphin, gave birth to her first calf on January 9, 2014 at Six Flags Discovery Kingdom. (Photo by Justin Sullivan/Getty Images)

Sledding dogs are pictured before the start of a stage of the Grande Odyssee sledding race across the Alps on January 13, 2014 in Sixt-Fer-a-Cheval. (JEFF PACHOUD/AFP/Getty Images)

A Mute Swan cygnet swims in Ohrid Lake near the city of Ohrid on January 17, 2014. Ohrid and Lake Ohrid were accepted as Cultural and Natural World Heritage Sites by UNESCO. (ARMEND NIMANI/AFP/Getty Images)

SHERBURN IN ELMET, ENGLAND - JANUARY 17: A sheep stands surrounded by heavy smoke during a huge fire at a tyre recycling plant on January 17, 2014 in Sherburn in Elmet, England. The fire began yesterday as thousands of tyres caught fire at the recycling plant in North Yorkshire. Fire crews are in attendance and will monitor the fire until it is extinguished. The plume of acrid smoke can be seen for miles around. (Photo by Ian Forsyth/Getty Images)

Seagulls fly over Lake Ohrid near the city of Ohrid on January 16, 2013. Ohrid and Lake Ohrid were accepted as Cultural and Natural World Heritage Sites by UNESCO. (ARMEND NIMANI/AFP/Getty Images)

KENMORE, SCOTLAND - JANUARY 15: Ben the dog waits in the near freezing River Tay for his master Alan Beatham to cast off during the Traditional opening of the Tay Salmon Season on the River Tay on January 15, 2014 in Kenmore Scotland. Today marks the start of the 2014 salmon season, the River Tay is famous for its salmon fishing and the traditional opening has been taking place since 1947. (Photo by Mark Runnacles/Getty Images)

A Highland cow stands in its enclosure prior to a show contest in the farm animals Hall of the Gruene Woche International Agriculture Fair in Berlin January 17, 2014. The International Green Week takes place from January 17 to 26, 2014. (JOHN MACDOUGALL/AFP/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 18: A magpie lands on the net during the second round doubles match between David Marrero of Spain, Fernando Verdasco of Spain and Alex Bolt of Australia and Andrew Whittington of Australia during day six of the 2014 Australian Open at Melbourne Park on January 18, 2014 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

ABU DHABI, UNITED ARAB EMIRATES - JANUARY 17: Two geese flying over the water during the second round of the Abu Dhabi HSBC Golf Championship at the Abu Dhabi Golf Club on January 17, 2014 in Abu Dhabi, United Arab Emirates. (Photo by Ross Kinnaird/Getty Images)

Japanese macaque monkeys, known as 'snow monkeys,' take an open-air-hot spring bath while snowflakes fall at the Jigokudani (death valley) Monkey Park in the town of Yamanouchi, Nagano prefecture on January 19, 2014. Some 160 of the monkeys inhabit the area and are a popular tourist draw. (TOSHIFUMI KITAMURA/AFP/Getty Images)

Japanese macaque monkeys, known as 'snow monkeys,' take an open-air hot spring bath as snowflakes fall at the Jigokudani (death valley) Monkey Park in the town of Yamanouchi, Nagano prefecture on January 19, 2014. Some 160 of the monkeys inhabit the area and are a popular tourist draw. (TOSHIFUMI KITAMURA/AFP/Getty Images)

LA QUINTA, CA - JANUARY 16: Bighorn sheep run on the Arnold Palmer Private Course at PGA West during the first round of the Humana Challenge in partnership with the Clinton Foundation on January 16, 2014 in La Quinta, California. (Photo by Jeff Gross/Getty Images)

NEW YORK, NY - JANUARY 15: A Border Collie 'Gem' attends the 138th Annual Westminster Kennel Club Dog Show press conference at Madison Square Garden on January 15, 2014 in New York City. (Photo by Desiree Navarro/Getty Images)

KENMORE, SCOTLAND - JANUARY 15: Ben the dog waits in the freezing River Tay for his master Alan Beatham to cast off during the Traditional opening of the Tay Salmon Season on the River Tay on January 15, 2014 in Kenmore Scotland. Today marks the start of the 2014 salmon season, the River Tay is famous for its salmon fishing and the traditional opening has been taking place since 1947. (Photo by Mark Runnacles/Getty Images)

BERLIN, GERMANY - JANUARY 15: Free-range hogs belonging to demonstrating farmers graze in front of the German federal chancellery on January 15, 2014 in Berlin, Germany. The pigs, which are not treated with hormones or antibiotics except in medical emergencies and are only fed with non-genetically-modified food, were brought to the demonstration as a symbol against industrial farming and the Transatlantic Trade and Investment Partnership (TTIP), a trade agreement to be negotiated between the European Union and the United States that organic farmers see as a threat to environmental protection, health and safety standards as well as consumer rights. (Photo by Adam Berry/Getty Images)

A male peacock displays its feathers at Sri Lanka's Yala National Park, in the southern district of Yala, some 250 kms southwest of Colombo, on January 15, 2014.Yala National Park is the most visited and second largest national park in Sri Lanka. (LAKRUWAN WANNIARACHCHI/AFP/Getty Images)

A male peacock displays its feathers at Sri Lanka's Yala National Park, in the southern district of Yala, some 250 kms southwest of Colombo, on January 15, 2014.Yala National Park is the most visited and second largest national park in Sri Lanka. (LAKRUWAN WANNIARACHCHI/AFP/Getty Images)

PERTH, AUSTRALIA - JANUARY 14: A possum that survived the bushfire is pictured in Fennell Court, Stoneville on January 14, 2014 in Perth, Australia. Emergency services today escorted residents to survey damage to their homes and properties following a bushfire that blazed through over 400 hectares of land. Over 50 houses were destroyed in the fire that officials suspect was caused by a private owned power pole in the area. (Photo by Paul Kane/Getty Images)

A sledding dog is pictured before the start of a stage of the Grande Odyssee sledding race across the Alps on January 13, 2014 in Sixt-Fer-a-Cheval. (JEFF PACHOUD/AFP/Getty Images)

A picture taken on January 10, 2014 shows a tree kingfisher perched on a branch in the Mediterranean coastal city of Tel Aviv, Israel. (JACK GUEZ/AFP/Getty Images)

WASHINGTON, DC - JANUARY 08: Canadian Geese stand on the frozen waters of the Washington Channel on January 8, 2014 in Washington, DC. A polar vortex that has swept the east coast brought dangerously cold temperatures. (Photo by Mark Wilson/Getty Images)

Cattle covered by dried ash walk in Sigaranggarang village, in Karo, North Sumatra province, on January 11, 2014, after the eruption of Mount Sinabung. An Indonesian volcano that has erupted relentlessly for months shot volcanic ash into the air 30 times on January 4, forcing further evacuations with more than 20,000 people now displaced, an official said. (ATAR/AFP/Getty Images)

A picture taken on January 10, 2014 shows a tree kingfisher perched on a branch in the Mediterranean coastal city of Tel Aviv, Israel. (JACK GUEZ/AFP/Getty Images)

Bantu, a Silverback gorilla, gestures at the Chapultepec zoo in Mexico City on January 09, 2014. (OMAR TORRES/AFP/Getty Images)

The first gemsbok (Oryx gazella) cub born in captivity ten days ago, stays next to its mother at the Chapultepec zoo in Mexico City on January 09, 2014. (OMAR TORRES/AFP/Getty Images)

The first gemsbok (Oryx gazella) cub born in captivity ten days ago, stays next to its mother at the Chapultepec zoo in Mexico City on January 09, 2014. (OMAR TORRES/AFP/Getty Images)

Bantu, a Silverback gorilla, hits its chest at the Chapultepec zoo in Mexico City on January 09, 2014. (OMAR TORRES/AFP/Getty Images)

A man walks with his dog in a park in Moscow during a snowfall on January 12, 2013. Snow fell today across Moscow and its vicinity, while the temperatures reached 0 C (32 F), but due to high humidity and wind, weather experts said it would feel more like - 4 C (24 F). (KIRILL KUDRYAVTSEV/AFP/Getty Images)

Swans swim at sunset in the Lake Geneva, with the French Alps as background. (FABRICE COFFRINI/AFP/Getty Images)

BERLIN, GERMANY - JANUARY 07: Lilly, a female labrador, walks through Pets Deli, a newly-opened upscale food store that caters specifically to dogs and cats, on January 7, 2014 in Berlin, Germany. A store manager explained that the store offers not just freshly prepared organic food that is much healthier than most pet food, but that many of the food preparations for sale benefit the digestive system, especially for dogs suffering from digestion problems. (Photo by Sean Gallup/Getty Images)

A Californian sea lion waits to be fed during a photocall for Whipsnade Zoo's annual stocktake in Dunstable, Bedfordshire, north of London, on January 7, 2014. (CARL COURT/AFP/Getty Images)

A ring-tailed lemur is pictured during a photo call for Whipsnade Zoo's annual stocktake in Dunstable, Bedfordshire, north of London, on January 7, 2014. (CARL COURT/AFP/Getty Images)

MILWAUKEE, WI - JANUARY 7: A waterfowl flies along icy shore of Lake Michigan as temperatures remain in the negative digits on January 7, 2014 in Milwaukee, Wisconsin. A 'polar vortex' of frigid air centered on the North Pole dropped temperatures to the negative double digits at its worst. (Photo by Darren Hauck/Getty Images)

Asian elephants are pictured during a photo call for Whipsnade Zoo's annual stocktake in Dunstable, Bedfordshire, north of London, on January 7, 2014. (CARL COURT/AFP/Getty Images)

Vervet monkeys interact on top of a roof in the small costal town of St Lucia, South Africa, Friday, Dec. 27, 2013. Research on natural populations, vervet monkeys serve as a nonhuman primate model for understanding genetic and social behaviors of humans. They have been noted for having human-like characteristics, such as hypertension, anxiety, and social and dependent alcohol use. (AP Photo/Schalk van Zuydam)

A man walks his dog along Shirley Street in the early morning hours after an overnight storm January 3, 2014 in Winthrop, Massachusetts. The storm began mid day Thursday and has affected millions across much of the Northeast with heavy snow causing thousands of cancelled flights and bringing coastal flooding. (Photo by Darren McCollester/Getty Images)

A penguin looks at a keeper's clipboard during a stocktake at London Zoo, Thursday, Jan. 2, 2014. Home to more than 850 different species, London zookeepers welcomed in the New Year armed with clipboards as they made a note of every single animal. The compulsory annual count is required as part of ZSL London Zoo’s zoo license, and every creature, from the tiny leaf cutter ants to the huge silverback gorilla is duly noted .(AP Photo/Kirsty Wigglesworth)

Yuan Zai , the first Taiwan-born baby panda, lies inside an enclosure at the Taipei City Zoo on January 4, 2014. The first Taiwan-born giant panda cub was unveiled to the media on January 4 in a warm up for her highly-anticipated public debut next week. (SAM YEH/AFP/Getty Images)

NAZARE, PORTUGAL - JANUARY 04: Seagulls fly over the beach on January 4, 2014 in Nazare, Portugal. Strong winds and big waves are expected along the coastline of Portugal and Galicia in Spain for the next few days. The waves at Praia do Norte are famed for being amongst the biggest in the World and it is a popular spot for daredevil big-wave surfers. (Photo by Pablo Blazquez Dominguez/Getty Images)

NEW YORK - JANUARY 04: Kyona, a rescue dog from Japan (right,) interacts with another dog in the snow in Carl Schurz Park after an overnight storm dropped up to 7 inches of snow on January 04, 2014 in New York City. The Northeast and Midwest regions of the United States were hit with a large amount of snowfall accompanied by blizzard-like winds and plummeting temperatures this week. (Photo by Yana Paskova/Getty Images)

A two-headed calf, named Sana Saida (Happy New Year in Arabic) is seen in the Moroccan village of Sefrou, 20 kilomtres from the moutainous town of Fez on January 3, 2014. The calf was born on December 30, 2013. (FADEL SENNA/AFP/Getty Images)

A girl poses for a souvenir picture with a man's parrots in exchange for a small donation in Honolulu, Hawaii, on January 2, 2014. Tourism has contributed 1.4 billion US dollars in tax revenue for the state through November 2013, 40 million dollars more than the same period last year. However, while year-to-date visitor arrivals and expenditures continue to exceed last year, growth continues to slow during the second half of the year with monthly decreases in arrivals and expenditures in November 2013, according to Hawaii Tourism Authority (HTA). (JEWEL SAMAD/AFP/Getty Images)

Yuan Zai , the first Taiwan-born baby panda, climbs inside an enclosure at the Taipei City Zoo on January 4, 2014. The first Taiwan-born giant panda cub was unveiled to the media on January 4 in a warm up for her highly-anticipated public debut next week. (SAM YEH/AFP/Getty Images)

LANGPORT, ENGLAND - JANUARY 02: Horses try to graze in a field besides the A303 near Langport that has been covered by flood water on January 2, 2014 in Somerset, England. Government ministers are holding a COBRA emergency committee meeting today to discuss the United Kingdom's response to recent flooding. (Photo by Matt Cardy/Getty Images)

LONDON, ENGLAND - JANUARY 02: Pelicans are counted during ZSL London Zoo's annual stocktake of animals on January 2, 2014 in London, England. The zoo's annual stocktake requires keepers to check on the numbers of every one of the 800 different animals species held, including every invertebrate, bird, fish, mammal, reptile, and amphibian. (Photo by Oli Scarff/Getty Images)

This Thursday, Jan. 2, 2014, photo provided by the Chicago Zoological Society shows a baby grey seal that was born Wednesday, with his mother, 10-year-old Lily, at the Brookfield Zoo in Brookfield, Ill. Zoo officials say the pup is the first of its species to be born at the zoo. He weighed 25 pounds. (AP Photo/Chicago Zoological Society, Jim Schulz)