我還沒打。70%指的是什麽呢？感染後70%的打疫苗者不發病？還是70%的打疫苗者不輕轉重？

來源: 香草仙子於 2021-03-28 16:52:16 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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