好像有數據說每年打感冒疫苗得新冠後變重症比率也很低所以新冠疫苗防護作用可能僅僅和感冒疫苗差不多而已。

來源: DSc 於 2022-01-04 09:15:17 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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