White House directive reshapes childhood immunization schedule, splitting MMR vaccine

The Trump administration has issued an executive order

The Trump administration has issued an executive order that overhauls federal vaccine guidance for children, instructing health agencies to recommend separating the combined measles, mumps, and rubella (MMR) shot into three individual inoculations given on different days.

Officials said the move aims to give families more flexibility and reduce the amount of antigens a child receives in a single visit. The directive also calls for a review of the entire pediatric vaccination schedule, with a focus on reducing the number of shots recommended before age three.

Public health experts warn that splitting the MMR vaccine could leave children vulnerable to measles for longer periods, as the interval between doses increases. They also note that the combined vaccine has been used safely for decades and that separating it offers no proven medical benefit.

The order is part of a broader effort

The order is part of a broader effort by the administration to overhaul vaccine policy, following criticism from some conservative groups that the current schedule is too aggressive. Supporters of the change argue that parents should have more control over when and how their children are vaccinated.

Federal agencies now have 90 days to propose new guidelines, which would then go through a public comment period. The final rule could take effect as early as next year, though legal challenges from medical organizations are expected.

The administration emphasized that the order does not ban vaccines but rather changes the recommended schedule. It also directs federal health agencies to launch a public awareness campaign about vaccine ingredients and potential side effects, a move that critics say could erode trust in immunization.