South Carolina measles outbreak is 'accelerating,' driving hundreds into quarantine
NBC News••health
Key Points:
- South Carolina is experiencing an accelerating measles outbreak, with 111 cases reported in upstate regions including Greenville and Spartanburg, and 27 new cases since the previous Friday, largely attributed to holiday gatherings and low vaccination rates.
- Vaccination rates in Spartanburg and Greenville counties are around 90%, below the 95% threshold needed for herd immunity, and mobile health clinics offering MMR vaccines have seen low community uptake.
- The outbreak has led to quarantines affecting 254 people, primarily in schools and a church in Spartanburg County, with some students facing a second 21-day quarantine, significantly impacting classroom attendance.
- Measles cases are also rising nationally, with 1,912 cases reported in 2025, including outbreaks
