COVID-19 was silently spreading across US as early as December 2019, CDC study says

The first confirmed coronavirus case in the U.S. was reported on Jan. 19 in a Washington man after returning from Wuhan, China, where the first outbreak of COVID-19 occurred.

Now, data from a new government study paints a different picture — the coronavirus may have been silently spreading in America as early as December 2019.

Researchers with the Centers for Disease Control and Prevention collected 7,389 blood samples from routine donations to the American Red Cross between Dec. 13, 2019 and Jan. 17, 2020.

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