Using data from the recent nationwide survey in Japan, this study found that the number of patients with #KawasakiDisease decreased by approximately one-third across Japan in 2020 compared with previous years. https://ja.ma/3gbXrf1#Research
3つ目の論文のconclusionは、Our data support the need for 2nd dose of vaccine to induce strong SARS-CoV-2 CD8 T-cell specific response and generation of memory subsets of CD4+ and CD8+ T cells. Regulatory lymphocytes appear to play a role in the magnitude of response.と、2回目
そもそも2つ目の論文のタイトルは「Induction of High Levels of Specific Humoral and Cellular Responses to SARS-CoV-2 After the Administration of Covid-19 mRNA Vaccines Requires Several Days」抗体が十分に誘導されるのに2週間ぐらいかかりますって論文ですし。