看來打過疫苗的得病毒後的傳染性很低。如果全都打過疫苗，病毒就失去傳染性了。

來源: Gingerflower 於 2021-09-19 20:22:52 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.