Five pediatric deaths connected with influenza were reported during the 2010-11 season, according to the Arizona Department of Health Services. The season concluded with the latest report, which covers Sept. 25 to Oct. 4.
A total 9,837 lab-confirmed cases were reported across Arizona. Many more likely were sick, as some people don't require lab testing, health officials say.
Most confirmed cases - 30 percent - were in people 19 to 49 years age. The second biggest group was children 5 to 18, with 27 percent of the cases. Arizona's youngest population - birth through age 4 - saw 23 percent of the confirmed cases.
One percent of cases did not have the patient's age.
The remainder was in people age 50 and older.
The 2010-11 season saw the second-highest number of confirmed cases in the last four years.
The largest number was reported during the 2009-10 season, when there was an outbreak of the influenza known as H1N1. Vaccinations now cover that strain of the disease.