Pfizer COVID-19 vaccine highly effective in kids 5-11, company says
Pfizer says its COVID-19 vaccine is safe and nearly 91% effective at preventing symptomatic infections in kids 5-11, based on clinical trial data released Oct. 22, 2021.
Pfizer says its COVID-19 vaccine is safe and nearly 91% effective at preventing symptomatic infections in kids 5-11, based on clinical trial data released Oct. 22, 2021.