Flu in Adults (cont.)
IN THIS ARTICLE
Prognosis of Flu in Adults
Flu symptoms start to go away after two to five days. Fever may last for up to five days, while other symptoms, including weakness and fatigue, may persist for several weeks. The very young, the very old, and those in the high-risk groups are at risk for complications requiring hospitalization. Some people may die from the flu.
Medically Reviewed by a Doctor on 4/2/2015
Steven Fine, MD, PhD
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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.