Pfizer is expected to ask the F.D.A. to authorize its Covid vaccine for children under 5. by Sharon LaFraniere and Noah Weiland


Pfizer and BioNTech in mid-December announced that two doses of the vaccine, given at a tenth of the amount of an adult dosing, did not produce a strong enough immune response in children ages 2 to 4.

Published: January 31, 2022 at 01:00AM

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