Key Takeaways

At least 69 measles cases have been confirmed in Utah and ArizonaLocal vaccination rates are well below the 95% level recommended for herd immunityThe U.S. Centers for Disease Control and Prevention has reported over 1,500 measles cases this year, most in three decades

THURSDAY, Sept. 25, 2025 (HealthDay News) — One of the largest measles outbreaks in decades is spreading along the Arizona-Utah border, with dozens of confirmed cases among unvaccinated children.

Southwest Utah has reported 27 cases so far, nearly all in unvaccinated school-age children, local health officials said. Neighboring Mohave County, Arizona, has 42 confirmed cases, including one child who has been hospitalized.

“This is the highest number of cases we have seen since the 1990s,” the Arizona Departm

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