The U.S. is up to 1,197 confirmed measles cases this year. Arizona declared a new outbreak last week, while the one in Texas, ...

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

There have been 32 confirmed measles cases not affiliated with the outbreak, including four in Tarrant County, three in ...

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

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 ...

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

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

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