Overview

• Federal data show 1,563 confirmed cases this year and 44 distinct outbreaks across 41 states, the highest U.S. tally in more than three decades.
• South Carolina ordered at least 153 unvaccinated students at two Spartanburg County schools into 21-day quarantine after exposures, with officials warning of unrecognized community transmission.
• Utah reported 55 cases with wastewater signals of wider circulation; six people have been hospitalized and only one case occurred in a vaccinated individual, state health officials said.
• Minnesota added two cases to reach 20 this year, with recent infections in unvaccinated children likely acquired from an unvaccinated adult, according to state reports.
• Most cases are in unvaccinated people as kindergarten MMR coverage sits at about 92.5%—below the 95% needed for herd immunity—with hospitalizations reported and at least three U.S. deaths this year.