An infant under the age of six months has died due to influenza, according to the Maricopa County Department of Public Health.
Officials say the infant was not old enough to be immunized.
No child deaths from influenza were reported last season, according to officials.
Currently, a total of 935 flu cases have been reported to the department so far this season, which is approximately four times the amount that the county experienced in the previous season.
“This is a tragic reminder that anyone who is able to get the flu shot should, not only to protect themselves, but to protect those around them who are most at risk of severe disease and death from the flu,” said Dr. Rebecca Sunenshine, the medical director for disease control.