CDC reports increase in kindergarten vaccine exemptions

For the 2025-2026 school year, exemptions from one or more vaccines among U.S. kindergartners was at 4.2%, increasing from 3.6% for the previous school year, according to data released yesterday by the Centers for Disease Control and Prevention. Exemptions rose in 41 states and Washington, D.C. Vaccination coverage declined for all reported vaccines from the previous year. Coverage with the measles, mumps and rubella, or MMR; diphtheria, tetanus, and acellular pertussis, or DTaP; polio and varicella vaccines decreased in more than half of states. The CDC said there were approximately 280,000 kindergartners that attended school in 2025-2026 without documentation of completing the two-dose MMR vaccine.