Influenza (the flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. The best way to prevent the flu is by getting a flu vaccination each year. Some people, such as older people, young children, and people with certain health conditions, are at high risk for serious flu complications
- The Influenza (Flu) Viruses - Types of Flu Viruses, how viruses change, and how animals are affected
- Key Facts About Seasonal Flu - A summary of key flu facts and who should get vaccinated
- Symptoms & Severity - Flu symptoms and how some people are at greater risk from severe complications
- How Flu Spreads - How the virus spreads and how long people may be contagious
- Flu Season - General information on flu season in the United States
- Seasonal Flu and Staph Infections - Information about flu and staph infections, MRSA
- Free Flu Materials (Centers for Disease Control and Prevention) - This year’s seasonal flu materials are free for download—no printed versions are available. For high-risk groups, parents, health care workers, and people in the workplace.