Health2 days ago· 1 min read
South Carolina's Massive Measles Outbreak Officially Ends
South Carolina's largest measles outbreak in 30 years—with nearly 1,000 confirmed cases—is now officially over, thanks to aggressive vaccination campaigns and public health response. However, the U.S. still faces record-breaking measles cases nationwide with over 1,700 cases reported in 2026.
Record Measles Outbreak Contained, But National Crisis Continues
South Carolina Victory: State health officials announced Monday that the largest measles outbreak the U.S. has had in decades has ended.
Outbreak Details:
- Duration: Nearly 6 months (starting in October)
- Cases: Nearly 1,000 confirmed cases
- Hospitalizations: At least 21
- Ending criteria: No new cases for more than 42 days (two incubation periods)
How They Won:
- Vaccination surge: Tens of thousands of MMR doses administered
- Contact tracing & quarantine: Aggressive public health protocols
- Cost: ~$2 million to contain outbreak
- Effectiveness: MMR vaccine is 93% protective with one dose, 97% with two
National Picture Remains Dire:
- 1,792 measles cases already reported in 2026
- Utah-Arizona outbreak: 600+ cases
- On track for worst year since measles elimination in 2000
- Expert consensus: Falling vaccination rates drive the surge