COVID: Vaccines for kids under 5 delayed as Pfizer tests extra shot
By LAURAN NEERGAARD Pfizer said Friday it was changing plans and testing three doses of its COVID-19 vaccine in babies and preschoolers after the usual two shots didn't appear stro…
By LAURAN NEERGAARD Pfizer said Friday it was changing plans and testing three doses of its COVID-19 vaccine in babies and preschoolers after the usual two shots didn't appear stro…