Website intended for a New Zealand health professional readership
As of May 1, 2025, a total of 935 confirmed* measles cases were reported by 30 jurisdictions: Alaska, Arkansas, California, Colorado, Florida, Georgia, Hawaii, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Missouri, Montana, New Jersey, New Mexico, New York City, New York State, Ohio, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Texas, Vermont, Virginia, and Washington.
There have been 12 outbreaks (defined as 3 or more related cases) reported in 2025, and 93 per cent of confirmed cases (869 of 935) are outbreak-associated. For comparison, 16 outbreaks were reported during 2024 and 69 per cent of cases (198 of 285) were outbreak-associated.
Total cases: 935
| Age | Number of cases |
| Under 5 years | 285 (30 per cent) |
| 5-19 years | 353 (38 per cent) |
| 20+ years | 284 (30 per cent) |
| Age unknown | 13 (1 per cent) |
| Vaccination status | Percentage of cases |
| Unvaccinated or unknown | 96 per cent |
| One MMR dose | 2 per cent |
| Two MMR doses |
2 per cent |
US hospitalizations in 2025: 121 of 935 (13 per cent)
| Percent of age group hospitalized | Number of cases |
| Under 5 years | 66 of 285 (23 per cent) |
| 5-19 years | 30 of 353 (8 per cent) |
| 20+ years | 23 of 284 (8 per cent) |
| Age unknown | 2 of 13 (15 per cent) |
There have been 3 confirmed US deaths from measles in 2025.
*NOTE: CDC is aware of probable measles cases being reported by jurisdictions. However, the data on this page only includes confirmed cases
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