The three-dose vaccine was most effective in children ages 6 months to 2 years, with a 75.8% efficacy rate, according to the study.
Pfizer-BioNTech Covid Vaccine Is 73% Effective In Young Children, Study Finds
The three-dose vaccine was most effective in children ages 6 months to 2 years, with a 75.8% efficacy rate, according to the study.