FDA approves new shots from Pfizer, Moderna
A health-care worker prepares a dose of the Pfizer-BioNTech Covid-19 vaccine at a vaccination clinic in the Peabody Institute Library in Peabody, Massachusetts, Jan. 26, 2022.Vanessa Leroy | Bloomberg | Getty ImagesThe Food and Drug Administration on Monday approved updated Covid vaccines from Pfizer and Moderna, putting the shots...