The outbreak comes after the US charted its highest number of annual measles cases in more than three decades in 2025.
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Officials in the United States have announced that the measles outbreak in the southern state of South Carolina has grown to 185 cases, up nine from earlier this week.
In Friday’s update, state officials specified that 172 of the cases involved patients who had not received the measles, mumps and rubella (MMR) vaccine, designed to protect against infection.







