Sonora continues to have the second-highest number of measles cases of all of Mexico’s states, after only its neighboring ...

Health officials in Navajo County in northern Arizona say they've confirmed four measles cases, which are the first cases of ...

As super-contagious measles continues to spread and nears a six-year U.S. record, cases in its original epicenter of West ...

The four cases were confirmed in Navajo County. All four cases were people who were not immunized and had recently traveled ...

The Navajo County Public Health Services District (NCPHSD) and the Arizona Department of Health confirmed four cases of ...

Waning immunization rates mean Arizona schoolchildren are more vulnerable to vaccine-preventable diseases such as whooping ...

Arizona's kindergarten vaccination rates against measles, mumps and rubella are below the required 95% for herd immunity. Yet Republicans continue to look for new ways to weaken childhood vaccine ...

Four measles cases have been confirmed in unvaccinated individuals in Navajo County, Arizona, after international travel exposure.