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Reye Syndrome - Symptoms

Often, symptoms of Reye syndrome appear during recovery from a viral infection, such as the flu (influenza) or chickenpox (varicella). The symptoms develop rapidly over several hours to a day or two.

The first symptoms may include:

  • Sudden onset of retching or vomiting that is not clearly due to stomach flu.
  • Sluggishness, lack of energy, and loss of interest in surroundings.
  • Strange behavior, such as staring, irritability, personality change, and slurred speech.
  • Drowsiness that may lead to severe sleepiness (stupor).

As brain damage progresses, other symptoms may develop, including:

  • Confusion and inability to identify whereabouts or family members or to answer simple questions (disorientation).
  • Rapid, deep breathing (hyperventilation).
  • Aggressive behavior, such as hitting others without reason (combativeness).
  • Seizures and abnormal body positioning, and coma.

If Reye syndrome is not recognized and treated promptly, death can occur.

Before a diagnosis of Reye syndrome is made, other conditions with similar symptoms may be considered, because Reye syndrome is so rare.

WebMD Medical Reference from Healthwise

Last Updated: September 18, 2008
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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