Trump Signs Executive Order to Split MMR Vaccine into Three Separate Doses

Former U.S. President Donald Trump signed an executive order on Monday directing changes to federal childhood vaccination guidelines. The order calls for each vaccine to be administered during a separate medical visit and specifically mandates splitting the combined measles, mumps, and rubella (MMR) vaccine into three individual doses.

What the executive order requires

The directive instructs the U.S. Department of Health to revise current vaccination recommendations accordingly. It also directs the department to enhance vaccine research efforts, according to a fact sheet first published by the Daily Caller.

Separate single-antigen vaccines for measles, mumps, and rubella are not currently available for children in the United States.

Shift from recent administration priorities

This renewed focus on childhood immunization marks a departure from the Trump administration’s recent health policy emphasis. In the lead-up to the November midterm elections, the administration had prioritized less controversial public health initiatives, including healthy nutrition policies, drug price reduction negotiations, and stricter anti-fraud enforcement in healthcare.

Public health concerns raised

Public health experts have expressed concern that spacing out vaccine doses—as proposed in the order—could increase children’s risk of contracting vaccine-preventable diseases before they return for subsequent visits.

Childhood vaccines—and the timing and co-administration of those vaccines—are subject to rigorous, long-term scientific study. Safety monitoring continues for years after vaccines enter routine use.

Administration justification

Kush Desai, Trump’s spokesperson, told the Associated Press that the president is “one of countless parents who have raised questions and concerns about the measles-mumps-rubella combination vaccine.” Desai added that developing separate vaccines for each disease would “give parents more choices regarding when and how often their children receive vaccinations,” which he said would ultimately boost vaccination uptake.