可视为自然免疫长期有效的案例。就是不知对新冠变种效果如何。

来源: 欲千北于 2021-08-14 06:07:57 [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.