How Long Does The Flu Last 2024. In healthy children and adults, the flu typically lasts for three to seven days. Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system.
More evidence points to long flu being a real phenomenon, with a large study showing symptoms persist at least 4 weeks or more after some people are hospitalized for the flu. How long does the flu last?
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