Due to technical difficulties, all Medical Marijuana online applications will be unavailable until 8AM, Tuesday, March 11th. We apologize for the inconvenience and thank you for your patience.

Infectious Disease Epidemiology

Arizona Influenza Activity 2003-2004

Summary of 2003-2004 influenza season

Season's summary
Lab surveillance
Influenza-like illness sentinel surveillance

2003-2004 Season summary of flu activity

Influenza activity during the 2003-2004 season first became widespread in Arizona in the week ending 12/6/2003 (week 49) and dropped back to regional after 1/3/2004 (week 53). The peak of activity in Arizona and in many states was much earlier this year than usual. The predominant strain identified nationally was influenza A/Fujian(H3N2). Five influenza-associated deaths among Arizona children were confirmed in the 2003-2004 season.

AZ influenza activity levels, 2003-04

Lab surveillance

The Arizona State Laboratory confirmed and subtyped 107 cases of influenza A during the 2003-2004 influenza season. These isolates were all influenza A(H3N2). Arizona's first laboratory-confirmed case was identified in mid-October. An additional 11 isolates were identified as influenza A but could not be subtyped, and one isolate was identified as influenza B.

Lab surveillance data

Influenza-like illness (ILI) surveillance from sentinel providers

Influenza-like illness (ILI) surveillance measures the proportion of patient visits to sentinel providers for ILI out of the total visits each week. The peak of ILI during the 2003-2004 season occurred in the week ending 12/13/2003.

ILI sentinel site data