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 ...

Fewer than a third of Arizona classrooms have herd immunity against measles, even as a deadly outbreak spreads. But there's ...

They were the first measles deaths in the U.S. since 2015. So far, Arizona has been spared a measles case. But Arizona’s vaccination rate is low. When it comes to measles, a vaccination rate ...

On Jan. 22, it was reported that an Arizona woman in her 50s who had visited the park in mid-December had been diagnosed with measles. As of Jan. 28, seven measles cases have been confirmed in ...

Infectious disease experts are working to find people who may have been exposed to the measles after four cases were ...