At least 171 measles cases confirmed in 9 states: CDC

At least 171 measles cases confirmed in 9 states: CDC

ABC News general

Key Points:

  • At least 171 measles cases have been confirmed in the U.S. so far in 2026, with cases reported across nine states including South Carolina, Utah, and Georgia, according to CDC data.
  • South Carolina is experiencing an outbreak centered in Spartanburg County, while Utah has had an ongoing outbreak since June 2025, with over 200 cases linked to the same virus strain that originated in Texas.
  • Approximately 95% of confirmed cases are among unvaccinated individuals or those with unknown vaccination status, while only a small percentage occurred in those partially or fully vaccinated with the MMR vaccine.
  • The U.S. faces growing concerns that measles may become endemic again after being considered eliminated since 2000