The flu, or influenza, is a contagious illness caused by viruses. It spreads easily through coughs, sneezes, and close contact. Common symptoms include fever, cough, sore throat, body aches, and fatigue. Prevention includes getting a flu vaccine, washing hands, and staying home when sick. Treatment involves rest and over-the-counter medicines. Complications can occur, especially in high-risk groups.
questions
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What is the flu, and how does it spread?
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What are some common symptoms of the flu?
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How can the flu be prevented?
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What should someone do if they have the flu?
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Who is at higher risk for complications from the flu?