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Event Brief

Trump signs order to split MMR vaccine shots

The Trump administration recommends separating MMR into three shots given in separate visits.
WHO: Trump administration
WHAT: Recommends splitting the measles, mumps and rubella (MMR) vaccine into three separate shots administered in separate visits
WHEN: Reported Aug 10, 2026 at 5:33 PM ET
WHERE: USA
WHY: No further detail was reported.
How this story developed (showing 3 of 3 earlier reports)

Reporting from 11 identified publishers across this event arc.

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Publishers represented across this event arc

These publishers contributed reporting to the broader event history. Not every source addresses the specific development described above.

How this brief is built: The BriefBrief correlates multiple sources into one evolving event brief, updated as new facts emerge.

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