Carlos Tejada@CRTejadaMany many many of us around the world are still waiting for vaccines, and you spoiled Americans are already talking booster shot.nytimes.comWhen will you need a Covid-19 booster shot?Many scientists estimate that the vaccines authorized in the United States will last at least a year. No one knows for sure, but early signs are promising.午後10:42 · 2021年6月7日·Twitter for iPhone8 件のリツイート20 件のいいね
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