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U.S. kindergarten vaccine coverage falls, CDC says
Exemptions rose to 4.2% as about 280,000 kindergartners lacked MMR documentation, while measles cases reached 2,566, the CDC said.
The CDC reported on Monday that kindergarten vaccination coverage fell 0.1% in the 2025-2026 school year, while exemptions from one or more vaccines increased to 4.2% among kindergartners in the United States.
President Donald Trump signed an executive order last week limiting the childhood inoculation schedule to 11 immunizations, recommending that the MMR vaccine be split into three separate shots taken at different visits.
About 280,000 kindergartners attended school without MMR documentation during the 2025-2026 school year, while the United States has recorded 2,566 confirmed measles infections so far this year—the highest count in more than 35 years.
Vaccination coverage for MMR and DTaP ranged from 92% to 92.4%, with decreases reported in more than half the regions, as the CDC warns that at least 95% coverage is necessary to prevent outbreaks.
Exemptions rose in 24 areas to exceed 5% during the 2025-2026 school year, up from 3.6% the previous year, suggesting a systemic weakening of public health protections across multiple vaccine types.