Measles Cases Jump to 884 so Far This Year: CDC

Infections this year add up to more than three times the number of cases reported in 2024.

Xerius Jackson, age 7, gets an MMR vaccine at a clinic conducted by Lubbock Public Health Department in Lubbock, Texas, on March 1, 2025. Jan Sonnenmair/Getty Images

A total of 884 confirmed cases of measles were reported across 30 U.S. states from the beginning of the year until April 24, the Centers for Disease Control and Prevention (CDC) said in an April 25 update.

“There have been 11 outbreaks (defined as three or more related cases) reported in 2025, and 93 percent of confirmed cases (820 of 884) are outbreak-associated,” the agency stated. “For comparison, 16 outbreaks were reported during 2024, and 69 percent of cases (198 of 285) were outbreak-associated.”