Seasonal influenza is a contagious respiratory illness caused by influenza viruses.  Seasonal influenza outbreaks occur every year.

• Clinical signs, symptoms, and complications of influenza
• New!  Seasonal Influenza Video Vignette
• How influenza is spread and how to prevent it
• What to do if you get sick
• Where to get vaccinated

• 2007-08 Flu Season Information & Handouts
• Extending the Flu Vaccination Season
• Michigan influenza surveillance
  • Current influenza activity (Michigan Flu Focus report)
    • Michigan Flu Focus Archives
  • MDCH laboratory influenza testing and surveillance
  • Doctors' office visits due to flu-like illness (graphs)
• U.S. influenza activity (CDC)
• International influenza activity (WHO)
• Influenza Vaccination
  • WHO Recommended Vaccine Composition for 2008-2009 Influenza Season  (February 19, 2008)  
  • General Information
  • Who should get vaccinated
  • Where to get vaccinated
  • Key facts about influenza and the influenza vaccine (CDC)
  • Michigan Department of Community Health Immunization Page

• Health Professionals
• Clinical laboratories
  • MDCH Bureau of Laboratories web page
  • MDCH instructions for submission of specimens for virus isolation
  • MDCH Routine Influenza Algorithm  (August 5, 2006)
    • Avian/Novel  influenza algorithm
    • Pandemic  influenza algorithm
  • MDCH test request form
  • Specimen collection guidelines for influenza-associated deaths in children
• Child care settings, Schools, Individuals and Families
• Businesses and the Workplace

• Centers for Disease Control and Prevention (CDC) Influenza Web Page
• Is it a Cold or the Flu?   National Institute of Allergy and Infectious Diseases (NIAID) publication
• Advisory Committee on Immunization Practices (ACIP) Recommendations for the Prevention and Control of Influenza (July 13, 2007)
• MDCH News Releases
• National Immunization Hotline
  • 1-800-232-2522 (English)
  • 1-800-232-0233 (Español)
  • 1-800-243-7889 (TTY)