SkullKandy
2020-08-05T17:07:18+00:00
如下图所示,复阳者为一名新冠感染者的密切接触者。医学门外汉感觉之前的,康复者抗体之类的研究有些站不住脚了。如果康复者仍能感染,群体免疫是个什么东西[s:ac:咦]
[img]https://img.nga.178.com/attachments/mon_202008/14/-7Q5-j7ifK2sT1kSfz-sg.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202008/14/-7Q5-j7ifK2sT1kSfz-sg.jpg.medium.jpg[/img]