Measles Cases and Outbreaks | Measles (Rubeola)

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As of December 31, 2024, a total of 285 measles cases were reported by 33 jurisdictions: Arizona, California, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New Mexico, New York City, New York State, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, Washington, Wisconsin, and West Virginia.

There have been 16 outbreaks (defined as 3 or more related cases) reported in 2024, and 69% of cases (198 of 285) are outbreak-associated. For comparison, 4 outbreaks were reported during 2023 and 49% of cases (29 of 59) were outbreak-associated.

U.S. Cases in 2024
U.S. Cases in 2024 Total cases 285
Age Under 5 years: 120 (42%) 5-19 years: 88 (31%) 20+ years: 77 (27%)
Vaccination Status Unvaccinated or Unknown: 89% One MMR dose: 7% Two MMR doses: 4%

U.S. Hospitalizations in 2024
U.S. Hospitalizations in 2024 40% 40% of cases hospitalized (114 of 285) for isolation or for management of measles complications.
Percent of Age Group Hospitalized Under 5 years: 52% (62 of 120) 5-19 years: 25% (22 of 88) 20+ years: 39% (30 of 77)