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Latest news, analysis and updates about MMR vaccine from Zorywire.

CDC reported 2,104 confirmed measles cases in the United States in 2026 as of its June 18 update, with resident cases reported by 41 jurisdictions. Most confirmed cases are linked to outbreaks, and state health departments may post local exposure updates before CDC’s national page changes.

UKHSA says England has recorded 736 laboratory-confirmed measles cases so far in 2026, with two child deaths confirmed. The latest figures show recent activity has been highest in London, the East of England and the West Midlands.

The CDC says 2,030 confirmed measles cases have been reported in the United States in 2026, with most cases tied to outbreaks. The latest update also explains why state counts may differ from the national total.