What are the symptoms of eastern equine encephalitis (EEE)?

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What are the symptoms of eastern equine encephalitis (EEE)?

Some people bitten by a mosquito infected with eastern equine encephalitis (EEE) virus may not develop any symptoms at all. For those who do develop symptoms, symptoms usually appear four to 10 days after being bitten.

Symptoms of mild, general EEE infection include:

  • Muscle aches.
  • Fever.
  • General feeling of discomfort.
  • Weakness
  • Joint pain.
  • Neck stiffness.
  • Chills.

Symptoms can last one to two weeks. However, tiredness and weakness may last for weeks to months.

Symptoms of severe infection – encephalitis (inflammation of the brain) – include:

  • High fever.
  • Headache.
  • Drowsiness.
  • Vomiting.
  • Diarrhea.
  • Loss of appetite.
  • Irritability/restlessness.
  • Confusion.
  • Seizures.
  • Coma.

Recovery from severe infection may take several weeks or months.

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