Active measles activity is reported across multiple U.S. states, including Tennessee, Montana, Mississippi, Utah, New York, Minnesota, Delaware, Georgia, Texas, Ohio, Pennsylvania, Wisconsin, Kentucky, and Iowa. Quantified burdens show increasing confirmed case counts in Montana (2,566), Pennsylvania (307), Wisconsin (39), Delaware (22), Kentucky (19), Iowa (12), and Georgia (7); no deaths are reported in the verified updates. Public health impact is predominantly rated medium across affected states, with Mississippi assessed as low, indicating a broadly consequential but variable operational burden. The large and rising case count in Montana, alongside increasing counts in several other states, suggests sustained transmission risk across multiple jurisdictions, though no clinical severity patterns beyond impact ratings are provided.