Children as young as 5 years of age can now receive booster doses of either of the 2 available bivalent mRNA vaccines for COVID-19, FDA said yesterday. The amended emergency use authorization (EUA) allows Moderna COVID-19 Vaccine, Bivalent to be administered at least 2 months following completion of primary or booster vaccination in children 6 years of age or older. The Pfizer-BioNTech COVID-19 Vaccine, Bivalent is authorized for administration at least 2 months following completion of primary or booster vaccination in children 5 years of age or older. With these EUA amendments, the monovalent Pfizer-BioNTech COVID-19 Vaccine is no longer authorized as a booster dose for individuals 5 through 11 years of age. Both the Moderna COVID-19 Vaccine and Pfizer-BioNTech COVID-19 Vaccine continue to be authorized for primary series administration in individuals 6 months of age or older.