Influenza Surveillance

Influenza Activity

Influenza-like illness activity in Wisconsin is based on information received from clinicians throughout the state of Wisconsin by the Division of Public Health. This data includes information on patients with influenza-like illness and the total number of patients seen in a given week. For surveillance purposes, influenza-like illness (ILI) is defined as the presence of fever (>100 degrees) with a fever or a cough, and does not reflect laboratory confirmed cases of influenza.  Listed below is information regarding the Wisconsin Sentinel Clinician Program as well as additional resources on national and international influenza surveillance. 

Surveillance Information

• Wisconsin Sentinel Clinician Program (PDF, 54.3 KB)

• Centers for Disease Control and Prevention's (CDC) Weekly U.S. Map of Influenza Activity (exit DHS)

• CDC's Weekly Report: Influenza Summary Update (exit DHS)
• International Influenza Surveillance (exit DHS)

General Information  |  Influenza Fact Sheet  |  Cold-Influenza-Pertussis?
 Seasonal Influenza  | Employer Resources  |  Consumer Resources
  Tracking Influenza  |  Protect Yourself  |  Additional Resources

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Last Revised: October 24, 2011