Coronavirus genomes show New York's COVID-19 outbreak came from Europe months ago

Coronavirus genome in China
(Image credit: STR/AFP/Getty Images)

The U.S. has nearly a third of the world's 1.5 million official COVID-19 cases, and New York, by itself, has more coronavirus cases than any single foreign country. But while the coronavirus outbreak started in Wuhan, China, in late 2019, most of the New York cases came from Europe, and the European mutation was spreading silently around the New York City area by mid-February, two separate groups of viral historians have determined, The New York Times reported late Wednesday.

Teams of geneticists at Icahn School of Medicine at Mount Sinai and the NYU Grossman School of Medicine separately studied the genomes of coronavirus samples from different groups of COVID-19 cases in New York. "The research revealed a previously hidden spread of the virus that might have been detected if aggressive testing programs had been put in place," the Times notes. As it was, New York got its first positive COVID-19 test on March 1, followed a couple of weeks later by a surge of cases.

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Peter Weber, The Week US

Peter has worked as a news and culture writer and editor at The Week since the site's launch in 2008. He covers politics, world affairs, religion and cultural currents. His journalism career began as a copy editor at a financial newswire and has included editorial positions at The New York Times Magazine, Facts on File, and Oregon State University.