听报道说传染性增加但致病重性没增强, 可是感染基数一大, 重症会随之增加.

来源: wszgr 于 2020-12-21 05:15:02 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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