Summary
A measles outbreak in South Carolina has quickly grown, with nearly 600 new cases reported in a little over a month. This outbreak is in Spartanburg County, and it has surpassed the number of cases seen during a major outbreak in Texas last year. Nationwide, nearly 20% of all measles cases reported in 2025 have already been confirmed this year.
Key Facts
- South Carolina has reported almost 600 new measles cases in just over a month.
- The outbreak is focused in northwestern Spartanburg County.
- There have been 789 confirmed cases in South Carolina since September.
- Last year, Texas reported 762 cases, which experts think might have been undercounted.
- A separate outbreak is happening on the Utah-Arizona border.
- U.S. measles elimination status is at risk due to these outbreaks.
- The CDC has confirmed 416 measles cases nationwide in 2026 so far.
- Other states with confirmed 2026 cases include California, Florida, Georgia, and several others.
