什么时侯达到群体免疫,一个月,10年?
群体免疫不等于放任不管。
•
这仅是基于统计模型假设,具体真正多久其效果如何,谁也不知道。
-pickshell-
♀
(0 bytes)
()
04/10/2020 postreply
09:01:02
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy