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Influenza (Flu) | CDC
Flu is a contagious respiratory illness that infect the nose, throat, and sometimes the lungs. Learn about the current flu season and find resources related to flu surveillance and past seasons. Learn more about who is at higher risk of developing potentially serious flu complications.
Influenza - Wikipedia
Not to be confused with Flue or Common cold. 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.
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.
About Influenza | Influenza (Flu) | CDC
Getting a flu vaccine has been shown to reduce the risk of flu and serious flu complications. Flu is a contagious respiratory illness caused by influenza viruses that infect tissues in the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death.
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).
Influenza (seasonal) - World Health Organization (WHO)
Seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. It is common in all parts of the world. Most people recover without treatment. Influenza spreads easily between people when they cough or sneeze. Vaccination is the best way to prevent the disease.
Influenza: Causes, Symptoms, Diagnosis, and Treatment
Influenza is not just another cold—it is one of the most persistent and dangerous viral infections in human history, responsible for countless deaths and widespread outbreaks.
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