关键是无症状怎么回事儿，我认为有2种可能。1个是夏天高温病毒活性变弱，因此毒性变弱;另一个可能是D614G

来源: bryt 于 2020-08-23 00:31:48 [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.