Flu in Adults (cont.)
IN THIS ARTICLE
What Is the 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.
Where Can People Find More Information About the Flu?
Centers for Disease Control and Prevention, Influenza (Flu)
Flu.gov, Seasonal Influenza
National Institute of Allergy and Infectious Diseases, National Institutes of Health, Flu Fact Sheet
American Lung Association, Influenza (Flu)
Medically Reviewed by a Doctor on 11/30/2015
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.