27.04.2026KI-Zusammenfassung South Carolina Declares End to Largest Measles Outbreak in U.S. Since 1991
South Carolina health officials have declared an end to the largest measles outbreak in the U.S. since 1991, with 997 cases over six months starting last October. The outbreak, centered in Spartanburg County where most schools had vaccination rates below the 95% threshold, was contained to the northwest region of the state. At least 21 people were hospitalized, and the state succeeded in stopping transmission partly due to increased vaccination rates. While the outbreak is over, more than 20 other outbreaks have been reported across the U.S. this year, with large outbreaks in Texas, Florida and Utah.