Trump Signs Order to Cut Childhood Vaccines From 17 to 6—Splits MMR Shot
Trump has signed an executive order slashing the recommended childhood vaccine schedule from 17 shots down to 6, while directing federal agencies to break up the combined measles, mumps, and rubella (MMR) vaccine into separate injections [216310][216478]. The move, backed by Health and Human Services Secretary Robert F. Kennedy Jr., comes as the U.S. faces its worst measles outbreak in over two decades, with more than 2,300 infections reported so far in 2026 [216310].
The order does not immediately ban any vaccine, but it instructs agencies to review current guidelines and prioritize reducing the number of shots given to children [215911][216744]. Under the new directive, the MMR vaccine—normally administered as one shot in two doses—would be split into three separate injections given during different doctor visits [219422][216310]. However, no stand-alone vaccines for measles, mumps, or rubella are currently licensed for use in the United States, meaning the change cannot be put into practice right away [219422][216310].
Six additional vaccines—hepatitis A, hepatitis B, rotavirus, meningococcal disease, flu, and COVID-19—have been reclassified under "shared clinical decision-making," a status that could make them optional and potentially excluded from insurance coverage [216310]. Health experts warn that the changes would make vaccination more costly and complicated for families, requiring more doctor visits and increasing the risk of missed doses [218367][217323].
The executive order challenges the authority of the Centers for Disease Control and Prevention (CDC), which sets the official vaccination schedule and has not endorsed the changes [215813][216310]. Trump repeated debunked claims linking vaccines to autism during the signing, statements rejected by decades of scientific research [215911][216310]. Kennedy echoed those false claims, saying "something happened in the mid-90s that changed our children" [216310].
Earlier this year, Kennedy attempted to reduce recommended vaccines from 17 to 11, but a federal judge blocked the move after pediatric and health groups sued [216310]. The new order goes further than that blocked attempt and is expected to face legal challenges from medical and advocacy groups [215911][216310].
For now, parents are advised that no immediate changes to vaccine schedules are in effect, and states still control most school vaccine requirements [216744]. The full impact of the order will depend on how agencies interpret it and whether state laws are affected [216478].