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, Causes, and Risk Factors
The flu is caused by influenza viruses that infect the nose, throat, and lungs, and it is spread when people with the flu cough, sneeze or talk. 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.
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.
Find a Flu Shot
Find where to get a flu shot with the HealthMap Vaccine Finder and learn more about influenza vaccines.
Questions to Ask Your Doctor
Ask your doctor these questions about influenza.
Facts About the Common Cold
Interesting and helpful facts about the common cold, and understanding the difference between a cold and the flu.
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.