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Splitting up the MMR vaccine: Public health experts worry about the proposal

Splitting up the MMR vaccine: Public health experts worry about the proposal
health • 10/8/2025

While President Donald Trump is pushing to split the MMR vaccine into three shots, experts say there’s no scientific reason for it, and it could lead to lower vaccination rates.

The combination measles, mumps and rubella vaccine — better known as the MMR shot —should be split into three separate vaccines, US Centers for Disease Control and Prevention Acting Director Jim O’Neill said this week. His post on X included similar ... [6907 chars]