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Flu in Adults

Flu in Adults Overview

Influenza (flu) is an acute infection of the nose, throat, and lungs. It is a common cause of acute respiratory illness and can affect people of all ages. It occurs every year beginning in late fall, with the peak season for the flu in the northern hemisphere extending from November through March. It infects in a widespread fashion, affecting people of different ages at the same time.

  • Some also confuse influenza with the term stomach flu. However, the latter is an illness associated with nausea, vomiting, and diarrhea and can be caused by bacteria and viruses, but not the influenza viruses. It is a stomach illness, whereas the flu is an illness of the respiratory system.
Medically Reviewed by a Doctor on 4/2/2015
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Read What Your Physician is Reading on Medscape

Influenza »

Influenza virus infection, one of the most common infectious diseases, is a highly contagious airborne disease that causes an acute febrile illness and results in variable degrees of systemic symptoms, ranging from mild fatigue to respiratory failure and death.

Read More on Medscape Reference »

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