Coronavirus May Have Spread in U.S. for Weeks, Gene Sequencing Suggests

Two cases detected weeks apart in Washington state had genetic links, suggesting that many more people in the area may be infected.
By BY SHERI FINK AND MIKE BAKER from NYT Health https://ift.tt/2IagTVa
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Coronavirus (2019-nCoV), Genetics and Heredity, Influenza, Epidemics
Source New York Times
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