現有的疫苗都沒有達到對Omicron新冠變體50%的防疫率。這是FDA能批準疫苗正式上市的最低要求。

來源: Ron47 於 2022-01-18 08:11:38 [舊帖] [給我悄悄話] 本文已被閱讀：次

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