去年初打過兩針covid疫苗，一直戴N95,至今未染. 春末要有一周室內不能戴口罩的情況，請建議預防措施。

來源: seabreeze66 於 2023-02-18 06:47:36 [舊帖] [給我悄悄話] 本文已被閱讀：次

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