Thirteen measles cases have been identified over the past week in Minnesota, including a cluster of 10 cases in Dakota County and three separate cases among children exposed to the infectious disease during international travels. The clusters raise the state's measles case count to 18 for 2025, the fifth-highest total in at least 15 years, according to the Minnesota Department of Health (MDH). Measles infections circulating among children in one Dakota County family were passed along by another individual who had symptoms but was never tested, according to MDH. However, Griffith said it's possible that the three children infected during international travel have spread measles to others in Minnesota. Three children in the recent Minnesota clusters were hospitalized, Griffith said.