Home Unlabelled New York Times: The C.D.C. updates its definition of ‘close contact’ in relation to infection risk.

New York Times: The C.D.C. updates its definition of ‘close contact’ in relation to infection risk.

October 21, 2020
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By BY GINA KOLATA from NYT World https://ift.tt/3jkCx9e
via The NewYork Times

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