Flu in Adults (cont.)
IN THIS ARTICLE
Prognosis of Flu in Adults
Flu symptoms start to go away after two to three days, but fever may last for about five days. Weakness and fatigue may last for a few weeks. The very young, the very old, and those in the high-risk groups are at risk for complications, including hospitalization. Some people may die from the flu.
Medically Reviewed by a Doctor on 12/18/2014
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.