Influenza (Flu)
Influenza, or flu, is a serious respiratory illness that is easily spread from person to person.
Learn About Flu
Influenza (flu), also referred to as seasonal flu, is a highly contagious respiratory illness caused by influenza viruses. Anyone can get the flu as it is spread easily from person to person, usually when an infected person coughs or sneezes.
Flu Symptoms and Risk Factors
Flu symptoms often appear suddenly and can include high fever, headache, cough, chills and more.
Diagnosing and Treating Flu
There are treatments that can reduce the duration of the suffering caused by the flu and improve symptoms. See a healthcare provider as soon as flu symptoms appear to find out if these treatments are right for you.
Preventing Flu
Flu season happens every year, it starts in the fall and continues into the spring. Make sure you are protecting yourself and others from the flu by practicing good health habits and getting your annual vaccination.
Questions to Ask Your Doctor
Ask your doctor these questions about influenza.
Facts about the Flu Shot
Fever, cough, chills, sore throat, headache is it the flu? Each year, influenza, or flu, sends thousands of Americans to the hospital.
Flu Resource Library
Find featured videos, factsheets, posters and toolkits designed to help individuals learn more about the flu.
