The Next Vaccine Debate: Immunize Young Children Now, or Wait? February 12, 2022 Auto Bot BioNTech SE, Children and Childhood, Clinical Trials, Coronavirus (2019-nCoV), Coronavirus Omicron Variant, Food and Drug Administration, Immune System, Pfizer Inc, United States, Vaccination and Immunization, your-feed-science 0 It’s not clear whether three doses of the Pfizer-BioNTech vaccine will adequately protect young children. But the F.D.A. may authorize the first two doses anyway.