Pfizer-BioNTech COVID vaccine less effective against infection for kids 5 to 11, study suggests - CBC News

Two doses of the Pfizer-BioNTech COVID-19 vaccine was protective against severe disease in children aged five to 11 during the recent Omicron variant surge, but quickly lost most of its ability to prevent infection in the age group, according to a study by Ne…

Two doses of the Pfizer-BioNTech COVID-19 vaccine was protective against severe disease in children aged five to 11 during the recent Omicron variant surge, but quickly lost most of its ability to pr… [+2293 chars]

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