forget to answer your first question
贾平凸
2020-09-07 13:22:02
( reads)
美国这样的疫情，都是18-22个月过去的，起于一个流感季中后期，结束于第三个流感季的前中期，跨三个流感季，1918还是2009，都是这样的。So we've got to look to Oct/Nov 2021 to conclude this virus, the earliest.