A three-dose regimen of the Pfizer-BioNTech COVID-19 vaccine produces a strong immune response in kids under five, the company says.
Pfizer on Monday said a trial examining a third dose of its vaccine in young kids found the vaccine's efficacy to be 80.3 percent in children between six months and under five years old. Children in the trial received a third shot, a smaller dose than adults receive, two months after the second dose. There were over 1,600 participants in the trial.
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