- 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
- Influenza (Flu) | Influenza (Flu) | CDC - Centers for Disease Control . . .
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
- Flu (Influenza): Causes, Symptoms, Types Treatment - Cleveland Clinic
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 | Definition, Symptoms, Treatment, Prevention | Britannica
influenza, an acute viral infection of the upper or lower respiratory tract that is marked by fever, chills, and a generalized feeling of weakness and pain in the muscles, together with varying degrees of soreness in the head and abdomen
- Your Guide to Flu Season: Prevention, Symptoms, and Treatment
Influenza A viruses naturally exist in many animal populations Wild birds like ducks and geese serve as the primary reservoir, but these viruses also circulate in domestic poultry and pigs Rarely, these animal-origin viruses can cross over and infect humans through direct contact with infected animals or contaminated environments
- Influenza - StatPearls - NCBI Bookshelf
Influenza is a communicable viral disease that affects the upper respiratory tract, including upper and lower respiratory passages A wide spectrum of influenza viruses causes it Some of these viruses can infect humans, and some are specific to different species
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