Hot Mask Summer? Americans Mask Back Up Indoors After New CDC Guidance

A new CDC document warns that the Delta variant is as contagious as the chicken pox and can present a greater risk of hospitalization, though vaccines are still highly effective at protecting against the virus.» Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc

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Hot Mask Summer? Americans Mask Back Up Indoors After New CDC Guidance