A first grader at Vistancia Elementary School in Peoria has died from a severe respiratory illness. Tests are being done to determine the cause.
Some are concerned that is could be related to Enterovirus D68, but the Centers For Disease Control hasn't confirmed any cases in Arizona.
There is also serious concern about whether Ebola could spread across the U.S.
We talked with Arizona Department of Health Services Director Will Humble about the latest concerns.