President Trump signs executive order changing child vaccination guidelines

On Monday, August 11, 2026, U.S. President Donald Trump signed an executive order intended to reduce the number of recommended childhood vaccinations. The directive limits the suggested vaccination schedule to 11 core immunizations, removing routine recommendations for vaccines such as hepatitis B, COVID-19, and influenza. Furthermore, the order mandates the splitting of the combined measles, mumps, and rubella (MMR) vaccine into three separate doses to be administered during different medical visits.

During the signing ceremony at the White House, President Trump stated that the U.S. has historically recommended more vaccinations than peer nations, sometimes twice the amount of certain European states. Public health experts have expressed concern that this reduction and the proposed spacing of doses could increase the risk of disease outbreaks. Sources note a practical challenge regarding the MMR directive: these three vaccines are currently not manufactured or circulated as individual units in the United States, meaning the policy shift would require significant changes in pharmaceutical production.

The administration frames this as a measure to prioritize critical immunizations, while critics argue it undermines established medical consensus. Investigations and public health assessments regarding the safety and logistical feasibility of these changes are expected to follow as officials navigate the transition.