Delta Variant’s Spread Prompts Reconsideration of Mask Guidance Los Angeles County and the W.H.O. warned that even immunized people should wear masks indoors. Some scientists agreed, but urged a localized approach. https://ift.tt/eA8V8J https://www.nytimes.com

Los Angeles County and the W.H.O. warned that even immunized people should wear masks indoors. Some scientists agreed, but urged a localized approach.

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