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Influenza (Flu)
Influenza, commonly called “the flu,” is a highly contagious respiratory illness caused by influenza viruses. The flu may result mild illness or severe illness accompanied by life-threatening complications. On average, 114,000 people are hospitalized for flu-related complications and 36,000 Americans die each year from complications of flu. Signs and symptoms of flu include fever, headache, extreme tiredness, dry cough, sore throat, runny or stuffy nose and muscle aches. Gastro-intestinal symptoms such as nausea, vomiting, and diarrhea are much more common among children than adults. The main way the flu is spread is from person to person in respiratory droplets of coughs and sneezes.