Officials have confirmed that the first flu case of the season was an unvaccinated woman in her late 50s who was never hospitalized.
Last year Arizona had 4,000 confirmed flu cases and one person younger than 19 died of influenza. The numbers of people 19 and over who die from influenza were not individually reported to the state, ADH said.
"We just don't know yet which strain will dominate this season or how bad it will be. But we do know that the best way to protect ourselves and those around us is to get our flu vaccine," said Dr. Bob England, director of the Maricopa County Department of Public Health.
This year's flu vaccine protects against 3 different flu viruses -- H3N2, H1N1, and influenza B. The Centers for Disease Control and Prevention recommends that everyone 6 months and older get the vaccine.
They also remind people to use proper hygiene, wash their hands, and stay home from school or work if you are sick.