如何知道是打了疫苗的傳染給了家人，而不是家人傳染給她？

來源: kingfish2010 於 2021-06-10 22:31:59 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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如何知道是打了疫苗的傳染給了家人， 而不是家人傳染給她？