Vaccinated People May Spread the Virus, Though Rarely, C.D.C. Reports

The agency cited an outbreak in Provincetown, Mass., in which most of the infected were immunized. An internal C.D.C. document paints an even more harrowing picture.

‘We’re Free Because They Were Brave’

Memorial Day had a special significance a year after many ceremonies honoring the nation’s fallen were canceled because of the pandemic.