新冠毒株突變，總的趨勢應是毒性越來越低，但是不排除病毒在某個特殊的個體，產生某種突破，變異出毒力更強的毒株。

來源: 愛令於 2022-02-19 13:27:22 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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