Pfizer officially asks the FDA to authorize its COVID vaccine for kids aged 5-11 : Coronavirus Updates : NPR

A healthcare worker prepares doses of the Pfizer-BioNTech Covid-19 vaccine at a mobile vaccination clinic at a high school in Los Angeles in August. Jill Connelly/Bloomberg via Getty Images hide caption toggle caption Jill Connelly/Bloomberg via Getty Images A healthcare worker prepares doses of the Pfizer-BioNTech Covid-19 vaccine at a mobile vaccination clinic at a…