不傳他人尤其老幼弱為先，適時take微量exposure機會，警覺異常及時調理 “感染後獲得自然免疫，防禦更全麵

來源: SAR 於 2021-09-02 11:15:22 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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