The effectiveness of the Pfizer-BioNTech COVID-19 vaccine against Omicron “declined rapidly for children, particularly those 5-11 years,” according to a study released February 28.
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Pfizer Vaccine Only 12% Effective in Kids 5…
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The effectiveness of the Pfizer-BioNTech COVID-19 vaccine against Omicron “declined rapidly for children, particularly those 5-11 years,” according to a study released February 28.