Covid-19 booster raises antibody levels against Omicron for children ages 5 through 11, Pfizer and BioNTech say

(CNN)A third shot of the children's dose of Pfizer/BioNTech's Covid-19 vaccine raised Omicron-fighting antibodies by 36 times in kids 5 through 11 years of age, the companies said in a news release Thursday.

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