Trump Orders Split of MMR Vaccine and Reduced Schedule

President Donald Trump signed an executive order on August 10, 2026, titled "Gold Standard Childhood Vaccine Recommendations," which reduces the number of universally recommended childhood immunizations from 18 to 11. The order removes recommendations for vaccines against Covid-19, influenza, rotavirus, and hepatitis A and B, shifting them to a shared clinical decision-making model between parents and doctors. A central mandate of the order requires the combined measles, mumps, and rubella (MMR) vaccine to be split into three separate injections administered during separate medical visits.

During the Oval Office announcement, Trump and Health Secretary Robert F. Kennedy Jr. suggested a link between vaccines and autism, with Trump claiming the combined MMR shot could be "quite lethal." Medical experts, the World Health Organization, and the American Academy of Pediatrics have condemned these claims as baseless, noting that separate MMR vaccines are not currently manufactured in the U.S. and could take up to a decade to develop and approve. Senator Bill Cassidy, a physician, called the policy "a stupid thing to do," warning it would increase doctor visits from two to six, raising costs and risking missed doses.

The order also directs the Department of Justice to challenge state laws that prohibit religious or medical vaccine exemptions. Several states, including New York, Maine, and those in the West Coast Health Alliance, have vowed to maintain their existing science-based schedules. The event was further marked by viral footage of Trump appearing to fall asleep during the announcement, which the White House dismissed as "blinking."