South Carolina measles outbreak grows with 124 new cases

South Carolina reported 124 new measles cases, bringing the outbreak total to 434, and more than 400 people are in quarantine.

South Carolina health officials reported 124 new measles cases since last Friday, bringing the outbreak total to 434. The outbreak began in early October and has been concentrated in Spartanburg County near the North Carolina border. Officials say more than 400 people are currently in quarantine. Key details: - 124 new cases were reported since last Friday, raising the outbreak total to 434. - Officials report more than 400 people are in quarantine. - The outbreak began in early October and is mainly in Spartanburg County. - The CDC recommends two doses of the MMR vaccine; data cited that in 2025 about 93% of cases were among people who were unvaccinated or whose vaccination status was unknown. Summary: The increase in reported cases adds to a broader rise in measles nationally, which reached its highest recorded level since 1992. Undetermined at this time.