Colorado is using wastewater testing to identify communities with measles infections before the cases show up in the clinic.

Just more than one month after measles was found in Mesa County, local public health officials said the outbreak has been ...

On Wednesday, Mesa County Public Health (MCPH) announced that it will scale back its measles response after 37 days of active ...

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

People who visited an exposure location and develop symptoms should call a health care provider before seeking help, so they can take precautions to avoid exposing others.

Preventing measles through widespread vaccination is a significantly more cost-effective strategy for communities, ...

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 ...

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

One of the largest measles outbreaks in the U.S. is now centered in bordering areas of southwestern Utah and Arizona. In ...

Southwestern Utah and Arizona are experiencing the largest measles outbreaks in the U.S. as the anti-vax movement grows.

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