Mohave County in Arizona and Washington County in Utah had reported a total of 78 measles cases between them, as of Sept. 25, ...

Measles infections in the US have reached 1,514 this year, as outbreaks continue to spread and routine childhood vaccinations ...

One of the largest measles outbreaks in the U.S. is now centered in bordering areas of southwestern Utah and Arizona. In Southwest Utah, all but one of the 27 confirmed cases are among unvaccinated, ...

One of the largest measles outbreaks in decades is spreading along the Arizona-Utah border, with dozens of confirmed cases among unvaccinated children.

A measles outbreak in northern Arizona has led to 46 cases statewide in 2025, the highest number since 1991. The outbreak is centered in Mohave County, which has low MMR vaccination rates among ...

Dozens of people in Arizona and Utah have contracted measles as an outbreak along the border continues to grow.

Over the past six weeks, 42 cases of measles have been confirmed in the northwest Arizona town of Colorado City, according to ...

Arizona's statewide MMR immunization rate dropped from 93.5% to 88.7% between 2019 and 2024. The "ideal" threshold to attain herd immunity and avoid disease outbreaks is 95%, according to messaging ...

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Parts of southwestern Utah and northwestern Arizona are seeing one of the largest measles outbreaks in the United States.

Health officials in both Arizona and Utah are urging parents to get themselves and their kids up-to-date on the measles ...