Coronavirus quickly spread around the world starting late last year, new genetic analysis shows

A new genetic analysis of the virus that causes Covid-19 taken from more than 7,600 patients around the world shows it has been circulating in people since late last year, and must have spread extremely quickly after the first infection.

from CNN.com - RSS Channel - App International Edition https://www.cnn.com/2020/05/05/health/genetics-coronavirus-spread-study/index.html
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