Influenza (flu) is a seasonal, contagious, respiratory illness caused by viruses that infect the nose, throat, and lungs. People 65 years and older, young children, and those with certain health conditions, are at higher risk of serious flu complications. Download our influenza toolkit now to learn more about influenza, and how you can help protect your community!
Sign Up for Email Updates
Join the 700,000+ people getting our email updates!