Overview

• Utah marked a fourth week without a new measles case and paused weekly updates after 11 cases between June 26 and July 21, but health leaders caution the school year could reignite spread.
• Vaccination coverage among Utah kindergarteners has declined to 86.9% statewide for in‑person students, with the Southwest Utah district at 78.5% and exemptions rising to roughly 9% for in‑person kindergarteners.
• California has reported 20 cases as of Aug. 11 and state data show 16 counties below the 95% MMR threshold needed for herd immunity, despite a 96.2% statewide kindergarten rate reported by the CDC.
• Nationally, experts warn official counts likely understate true infections, with one specialist estimating closer to 5,000 cases, and emphasize measles’ extreme contagiousness and two-hour airspace transmission risk.
• Texas declared its outbreak over after 42 days without a new case, while Colorado reported a new case in Mesa County near the Utah border, underscoring continued regional volatility.