CDC recommends children 6 months through 5 years who are unvaccinated receive a two-dose series of the Moderna bivalent vaccine (6 months through 5 years of age) OR a three-dose series of the Pfizer-BioNTech bivalent vaccine (6 months through 4 years of age). Children who are 5 years of age can choose to receive two doses of the Moderna bivalent vaccine or a single dose of the Pfizer-BioNTech bivalent vaccine.
Children 6 months through 5 years who have received at least one COVID-19 vaccine have different recommendations based on the number of vaccine doses they have received that are outlined in the CDC guidance.