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

Sailesh kumar 5:08 PM NYT

By BY GINA KOLATA from NYT World https://ift.tt/3jkCx9e

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

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

Reviewed by Sailesh kumar on 5:08 PM Rating: 5

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