South Carolina measles outbreak is largest in US since measles was declared eliminated: [View all]

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The fast-growing measles outbreak in South Carolina is now the largest in the United States since the disease was declared eliminated in this country more than two decades ago.

With 789 cases reported as of Tuesday, the South Carolina outbreak surpassed a massive outbreak in Texas, which reached 762 cases before it ended in August last year. Two children died during the outbreak in Texas.

South Carolina, which first reported cases in October, has added more than 600 cases in 2026 alone. At least 18 people – adults and children – have been hospitalized for complications of measles, the state health department said Tuesday, and no deaths have been reported.

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The vast majority of cases in the South Carolina outbreak are among children, nearly all of whom were not fully vaccinated with the recommended two doses of MMR vaccine. Of the 789 cases reported as of Tuesday, more than 700 were not vaccinated or had not received the two recommended MMR doses, the health department said.

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More:
https://www.cnn.com/2026/01/27/health/largest-us-measles-outbreak-south-carolina