Overview
- President Trump signed an executive order last week directing HHS to overhaul the federal childhood vaccine schedule and to administer the combined MMR shot as three separate single‑disease injections, with vaccines to be given at separate medical visits.
- Sen. Bill Cassidy publicly condemned the president’s comments and policy on national television, saying the changes are “crazy, stupid” and arguing they would force more doctor visits, raise costs for families and likely reduce immunization rates.
- Medical experts and immunologists say there is no scientific basis to split the MMR, note decades of research showing no link between vaccines and autism, and warn that separating the shot would risk missed doses and higher disease spread.
- Implementation faces major practical hurdles because no single‑antigen measles, mumps or rubella vaccines are currently licensed in the U.S., so splitting the MMR would require new clinical trials, separate FDA approvals and expanded manufacturing capacity that could take years.
- The order has already drawn legal and political resistance as the Justice Department is tasked to press states on following federal guidance and multiple states and public‑health groups have signaled they will not change school‑entry rules without regulatory and scientific backing, a split that highlights widening GOP and national debate over vaccine policy.