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

Health officials in Arizona say there are four linked measles cases in Navajo County, marking the state's first outbreak this ...

Arizona health officials say there are four confirmed linked measles cases, making it another state with an outbreak.

The biggest American measles outbreak in years has finally hit Arizona. On Monday, four cases of measles were confirmed in Navajo County. The cases are the first of the infectious disease that the ...

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 ...