Influenza (Flu) | CDC Influenza (flu) is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs Learn about flu, including symptoms, prevention methods, and treatment options
Influenza (flu) - Symptoms and causes - Mayo Clinic Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system The flu is caused by a virus Influenza viruses are different from the "stomach flu" viruses that cause diarrhea and vomiting Most people with the flu get better on their own
Influenza - Wikipedia Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue These symptoms begin one to four (typically two) days after exposure to the virus and last for about two to eight days
Flu (Influenza): Causes, Symptoms, Types Treatment What is the flu (influenza)? The flu is an illness you get from the influenza virus It causes symptoms like head and body aches, sore throat, fever and respiratory symptoms, which can be severe Flu is most common in winter months, when many people can get sick at once (an epidemic)
National Flu Activity Map - Flustar. com A resulting 12-point cold flu severity index is further broken out into five levels, helping to paint a regional and national picture of influenza activity in the US The map also provides breakouts for each condition on the national and local level and is updated regularly with season progress