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yesterday

CDC Warns of Measles Risk After US Cases Surpass 1,000

After confirming measles transmission on flights, the CDC urged full vaccination for all travelers.

A sign reading "measles testing" is seen as an outbreak in Gaines County, Texas, has raised concerns over its spread to other parts of the state, in Seminole, Texas, U.S., February 25, 2025. REUTERS/Sebastian Rocandio/File Photo
Trader Joe’s at 1306 Great Mall Parkway in Milpitas, Calif.
Starbucks at 35040 Newark Blvd. in Newark, Calif.
Measles virus particle, illustration. This virus, from the Morbillivirus group of viruses, consists of an RNA (ribonucleic acid) core surrounded by an envelope studded with surface proteins haemagglutinin-neuraminidase and fusion protein, which are used to attach to and penetrate a host cell. Measles is a highly infectious itchy rash with a fever. It mainly affects children, but one attack usually gives life-long immunity.

Overview

  • US measles cases reached 1,088 as of May 30, the highest total reported so far in 2025.
  • Ninety-six percent of cases were unvaccinated, and Texas has reported 738 infections and two child fatalities.
  • The CDC logged 62 reports of contagious travelers on flights and confirmed at least one in-flight transmission after investigating 50 cases.
  • The outbreak has spread to 30 states, with Iowa and Nebraska reporting their first confirmed cases this week.
  • The agency dropped its high-incidence country list and now warns of a global measles risk, recommending full vaccination for all travelers.