重磅消息:More evidence suggests COVID-19 was in US by Christmas 2019
haploidus(今剩叹)
A new analysis of blood samples from 24,000 Americans taken early last year is the latest and largest study to suggest that the new coronavirus popped up in the U.S. in December 2019 — weeks before cases were first recognized by health officials
枫下家园 / 医药保健 / 重磅消息:More evidence suggests COVID-19 was in US by Christmas 2019
-haploidus(今剩叹);
2021-6-15{732}(#13785291@0)+2
A new analysis of blood samples from 24,000 Americans taken early last year is the latest and largest study to suggest that the new coronavirus popped up in the U.S. in December 2019 — weeks before cases were first recognized by health officials