Whatsuptoday Worldnews: The C.D.C.’s decision on masks rests on new data showing the Delta variant thrives in the nose and throat.

Thursday, July 29, 2021

The C.D.C.’s decision on masks rests on new data showing the Delta variant thrives in the nose and throat.

By BY APOORVA MANDAVILLI from NYT World https://nyti.ms/3j4fcLa New York Times

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