On August 11, 2026, President Donald Trump signed an executive order directing federal agencies to dismantle the standard childhood vaccination schedule, according to multiple reports. The order cites unproven claims linking vaccines to autism and recommends breaking the combined measles, mumps, and rubella (MMR) vaccine into separate shots.
The executive order instructs the Department of Health and Human Services and other agencies to review and revise current vaccine recommendations, potentially altering requirements for school attendance and federal funding. Public health experts have expressed alarm, noting that the MMR vaccine is highly effective and safe, and that splitting it could leave children vulnerable during gaps between doses.
The order also calls for increased research into vaccine safety and autism, despite numerous studies showing no link. The American Academy of Pediatrics and the World Health Organization have reiterated their support for the combined vaccine, emphasizing that measles outbreaks have occurred in communities with low vaccination rates.
Critics argue the order could lead to a resurgence of preventable diseases, while supporters praise it as a step toward parental choice. The full impact remains unclear, as federal agencies must now implement the order, which may face legal challenges.