What are the signs and symptoms of influenza?

Updated: Apr 23, 2019
  • Author: Hien H Nguyen, MD, MS; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

The presentation of influenza virus infection varies, but it usually includes many of the following signs and symptoms:

  • Fever

  • Sore throat

  • Myalgias

  • Frontal or retro-orbital headache

  • Nasal discharge

  • Weakness and severe fatigue

  • Cough and other respiratory symptoms

  • Tachycardia

  • Red, watery eyes


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