heathy platform: Virus May Have Arrived in U.S. in December, but Didn’t Spread Until Later

1 Aralık 2020 Salı

Virus May Have Arrived in U.S. in December, but Didn’t Spread Until Later

By BY JAMES GORMAN from NYT Health Blood samples collected in mid-December indicate possible infections more than a month before the known first case of Covid-19, but do not show community transmission. https://ift.tt/2JtBhod

heathy platform

1 Aralık 2020 Salı

Virus May Have Arrived in U.S. in December, but Didn’t Spread Until Later

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