World

Why the CDC Changed Its Advice on Masks

APOORVA MANDAVILLIComments Off on Why the CDC Changed Its Advice on Masks
Two scientific findings altered the calculus: Vaccinated people rarely transmit the virus, and the shots are effective against variants.
APOORVA MANDAVILLI
https://www.nytimes.com/pages/world/index.html?partner=rss&emc=rss

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