President Trump is calling for immunizations for measles, mumps and rubella to be given in individual jabs in three different appointments instead of the standard combination shot.

Doctors and public health experts strongly oppose the idea, warning that splitting the MMR vaccine would delay full protection, increase the risk of outbreaks, and create logistical burdens. The combined shot has been safely used for decades and is highly effective.

While Trump has not provided evidence for his proposal, he has long expressed skepticism about vaccine schedules. Health officials emphasize that the single shot is recommended by the CDC and American Academy of Pediatrics.

Separating the vaccines would require three doctor visits and needles, potentially lowering compliance. Measles outbreaks have already increased due to declining vaccination rates.