Stat News: Pfizer’s Covid-19 vaccine was 100% effective in kids in longer-term study

Stat News: Pfizer’s Covid-19 vaccine was 100% effective in kids in longer-term study. “Pfizer and BioNTech announced Monday that their Covid-19 vaccine was 100% efficacious in preventing infections in 12- to 15-year-olds, measured from seven days to four months after administration of the second dose of the vaccine.”

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