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9h ago

U.S. Measles Cases Climb Past 2,000 as Ongoing Outbreaks Put Elimination Status in Jeopardy

Falling MMR coverage has left pockets of susceptibility, with unvaccinated people making up most cases as officials warn transmission could extend into late January.

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As of December 30, there have been 2,065 confirmed measles cases in the US in 2026, according to CDC data.
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Overview

  • The CDC reports 2,065 confirmed cases as of Dec. 30, the highest annual total since 1992.
  • South Carolina’s outbreak added 20 cases since Friday, with about 287 people in quarantine and state officials anticipating more cases into January.
  • Arizona now reports 205 cases and Utah 156 after new weekly increases, with the Arizona–Utah border region accounting for hundreds of infections this year.
  • About 93% of infections are in people who were unvaccinated or have unknown vaccination status; roughly 11% of U.S. cases have led to hospitalization and three deaths have been confirmed.
  • Texas leads state totals with 803 cases; the CDC counts 50 outbreaks that drove 87% of cases, and continued linked transmission for a few more weeks could cost the U.S. its measles elimination designation.