Pfizer Says COVID-19 Vaccine Shows '100% Efficacy' In Adolescents
Pfizer says its COVID-19 vaccine is shown to be extremely effective in young teenagers.; Credit: Esteban Felix/AP Bill Chappell | NPR Updated March 31, 2021 at 8:17 AM ET New clini…
Pfizer says its COVID-19 vaccine is shown to be extremely effective in young teenagers.; Credit: Esteban Felix/AP Bill Chappell | NPR Updated March 31, 2021 at 8:17 AM ET New clini…