现在是疫情的毒性减弱，像流感一样对人没有多大伤害了？还是人的免疫力在打过疫苗后都提高了，就不怕感染了？

来源: ToClouds 于 2023-05-24 11:49:24 [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.