俺及夫人年近六旬都打了三針，女兒高中生也打了兩針。疫苗的保護作用是肯定的。

來源: FollowNature 於 2022-04-21 04:31:00 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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