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Influenza surveillance in Michigan

The timing and severity of each influenza season is unpredictable. Influenza surveillance is a collaborative effort between CDC and state partners including MDHHS, as well as local and territorial health departments and more. Year-round surveillance collects data from various sources in order to:

  • Find out when and where flu activity is occurring
  • Determine what flu viruses are circulating
  • Detect changes in influenza viruses
  • Measure the impact of flu on our health care systems
Michigan Map

Michigan determines influenza activity

MDHHS determines influenza activity based on many sources of information including data from:  

View the current MI Flu Focus influenza surveillance report.

Or visit MI Flu Focus archives to see past influenza surveillance reports.

Weekly U.S. Influenza Surveillance Report

For more information on national flu surveillance activities please visit the CDC Flu Activity and Surveillance page.