CDC Tells Some Vaccinated People to Mask Up as Delta Surges (1)

Faced with a surge in coronavirus cases driven by the fast-spreading delta variant, U.S. health officials said fully vaccinated people should go back to wearing masks indoors in places where infections are soaring.

Rochelle Walensky, the director of the U.S. Centers for Disease Control and Prevention, said in a call with reporters on Tuesday that the decision to re-adopt masking in areas with large outbreaks hadn’t been taken lightly, and acknowledged that it wouldn’t be “a welcome piece of news” for vaccinated people.

Masks for many people remain a potent symbol of the darkest days of the pandemic in ...