Healthy Children Ages 6 Months Through 4 Years
Previously Vaccinated with Pfizer-BioNTech COVID-19 Vaccine

*An 8-week interval between the first and second COVID-19 vaccine doses might be optimal for some people as it might reduce the rare risk of myocarditis and pericarditis associated with these vaccines.

Reference: Clinical Guidance for COVID-19 Vaccination | CDC and 2024-2025 COVID-19 Vaccine Immunization Schedule for People 6 Months of Age and Older (cdc.gov)