Update (1015ET): The New York Times has confirmed (with its sources) that the CDC is expected to recommend on Tuesday that people vaccinated for the coronavirus resume wearing masks indoors under certain circumstances, reversing a decision made just two months ago.
As recently as last week, an agency spokesman said that the C.D.C. had no plans to change its guidance, unless there were a significant change in the science. The CDC plans to provide a media update on the pandemic at 3pmET.
"I think that's great," said Dr. Celine Gounder, an infectious disease specialist at Bellevue Hospital Center in New York.
Based on what scientists are learning about the Delta's variant's ability to cause breakthrough infections, she said, "this is a move in the right direction."