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Encephalitis: What Are The Symptoms?

Thursday, August 16, 2012 - 12:44

Contributing Author: Guy Slowik FRCS

The symptoms of encephalitis may vary widely depending on the cause and severity. They range from no symptoms in very mild cases, to more severe symptoms, including:

  • Muscle weakness; unsteadiness standing up or trouble walking
  • Headache, fatigue, fever, neck pain
  • Stiff neck
  • Nausea and vomiting
  • A foul mood, irritability
  • Aversion to light; squinting
  • Seizures
  • Clumsiness
  • Mental confusion
  • Drowsiness
  • A coma (in severe cases)

Babies may not show symptoms as distinctly. Their bodies may become weak or limp and they may squint or turn away from a light source.

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