無症狀人的抗體水平明顯低，那是不是說明他們很容易再被感染呢？就和沒有打過針的人差不多？

來源: kathyzh 於 2021-08-20 05:29:01 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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