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