Learn about common vaccine myths and facts. Reviewed 8/22/2025 Sources Centers for Disease Control and Prevention. "About Vaccines for Your Children." https://www.cdc.gov/vaccines-children/about/index.html. Centers for Disease Control and Prevention. "Catch-up Immunization Schedule for Children and Adolescents (Addendum Updated August 7, 2025." https://www.cdc.gov/vaccines/hcp/imz-schedules/child-adolescent-catch-up.html. Related stories