FILE – This March 6, 2020, file photo, shows the headquarters for Centers for Disease Control and Prevention in Atlanta. The nation’s top health agency is expected to backpedal on its masking guidelines and recommend that even vaccinated people wear masks indoors in parts of the U.S. where the coronavirus is surging, according to a federal official who spoke on condition of anonymity because the official was not authorized to release the data. The Centers for Disease Control and Prevention is expected to make an announcement Tuesday, July 27, 2021. (AP Photo/ Ron Harris, File)