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Eastern Equine Encephalitis found in Indiana mosquitoes


Indiana residents should take precautions against
mosquito bites, such as applying mosquito repellent to
both exposed skin and clothing (Juno Styles)

The Indiana State Department of Health has issued a warning to Indiana residents after discovering Eastern Equine Encephalitis in mosquitoes located in Elkhart County.

"Eastern Equine Encephalitis is potentially a very serious disease that can cause lifetime neurological disabilities. The only encephalitis of greater severity to humans than EEE is rabies," said Jennifer House, DVM, veterinary epidemiologist at the Indiana State Department of Health, in an August 12 press release. "The combined threat of Eastern Equine Encephalitis and West Nile virus in northern counties of the state makes it vital for residents in those areas to take steps to prevent mosquito bites."

Indianapolis area residents traveling to the northern part of the state should take precautions against mosquito bites, such as limiting outdoor time between dusk and dawn, wearing a mosquito repellent that contains DEET, picaradin, or oil of lemon eucalyptus, and using mosquito netting while sleeping outdoors.

For additional tips on how to prevent a mosquito bite, see the article "Indiana health officials remind Hoosiers to protect themselves from mosquito-transmitted diseases."

Symptoms of Eastern Equine Encephalitis
The Eastern Equine Encephalitis virus is found in mosquitoes and birds that live in freshwater, hardwood swamps. Humans contract Eastern Equine Encephalitis when a mosquito carrying the virus bites them. Humans do not spread the disease once they are infected.

Symptoms of Eastern Equine Encephalitis appear within 3 to 10 days after the infecting mosquito bite. Symptoms include:

  • Headache,
  • Sensitivity to light
  • Flu-like symptoms
  • Fever
  • Weakness
  • Nausea and vomiting
  • Abdominal pain
  • Weakness,
  • Confusion,
  • Lack of coordination,
  • Seizures
  • Loss of consciousness
  • Paralysis

While Eastern Equine Encephalitis is rare in humans, it has the potential to be deadly. According to state health officials, approximately 30 percent of infected humans die from the disease, while 50 percent of those who survive experience permanent neurological problems.

CDC reports show the last confirmed case of human Eastern Equine Encephalitis in Indiana was in 1998. 

For more info:  Indianapolis area residents who have questions on preventing mosquito bites or controlling mosquito populations can contact the Marion County Health Department - Mosquito Control at 317-221-7440.

Video: Protecting Against Mosquitoes and Eastern Equine Encephalitis (The University of Maine)


Related information:


  • April Adams - Salt Lake Wellness Examiner and Cat 4 years ago

    Thank goodness for OFF!!!

  • Joyce Geyer, Buffalo Breast Cancer & Health Ex 4 years ago

    I agree thankfully we have OFF. Good article, and warnings for those who read this is urgent. My friend last summer had a mosquito bite and got meningitis. Very serious. Her doctor told her 1 in 10 mosquitos carry meningitis.

    See me on
    Joyce Geyer, Buffalo Breast Cancer Examiner
    Buffalo Health Examiner
    Thank you!

  • Taylor Rios 4 years ago

    This is really scary, especially with all the mosquitos out right now

  • Winona Cooking Examiner 4 years ago

    This is so scary, there are so many mosquitoes in the past few years. Too bad they can't do something to dramatically reduce the population.
    Winona Home and Living

  • Profile picture of Nancy Zielinski
    Nancy Zielinski 4 years ago

    Wow, this sounds scary. Thanks for the info.

  • Profile picture of steff
    steff 4 years ago

    Good info!

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