use of medicine : Pfizer: COVID-19 vaccine 91% effective in children aged 5-11

Friday, October 22, 2021

Pfizer: COVID-19 vaccine 91% effective in children aged 5-11

WASHINGTON — Pfizer/BioNTech announced Friday a study that showed smaller doses of its COVID-19 vaccine for children ages 5 to 11 appear safe and are nearly 91 percent effective at preventing symptomatic

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