打了疫苗被感染的機率大大降低，但一旦被感染上了，死亡幾率與未打疫苗者比隻下降了28.5%？還是不好理解。

來源: 業餘城管於 2021-04-17 19:53:18 [舊帖] [給我悄悄話] 本文已被閱讀：次

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