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Eastern Equine Encephalitis Virus in Lyme

Please remember: We’re experts at killing mosquitoes, not the diseases they carry. If you have a medical concern, please consult your doctor immediately.

Mosquitoes have been known to cause diseases that potentially have lasting effects on the body. The Eastern equine encephalitis virus (EEEV), transmitted from a mosquito’s bite, is no exception. Although this virus is not as commonly known as other mosquito-borne viruses, like Zika and Malaria, the symptoms caused by this disease can be fatal.

According to the CDC, EEEV is a rare case of brain infection (encephalitis) that can either be systemic or encephalitic. The chart below demonstrates the difference between the two illnesses.

Systemic Illness:

  • Lasts for 1-2 weeks
  • Chills
  • Fevers
  • Malaise
  • Arthralgia (inflammation within the joint)
  • Myalgia (muscle aches and pain in the soft tissue of the bones, muscles and organs)

Encephalitic Illness:

  • Abrupt onset of symptoms in infants
  • Gradual symptoms in older children and adults
  • Fever
  • Headache
  • Irritability
  • Restlessness
  • Drowsiness
  • Anorexia
  • Diarrhea
  • Vomiting
  • Cyanosis (bluish discoloration in hands and feet)
  • Coma
  • Convulsions

Equine Encephalitis Virus in America

The map above is a diagram of the number of infected individuals within each state from 2009-2018.


Unfortunately, there is no human vaccine against EEEV infection available at this time. Individuals that are suspected to have EEEV should be assessed by their healthcare provider to discuss further steps during this infection.


The most effective way to prevent this infection is easier said than done: don’t get bitten! The use of insect repellent and clothing that covers your body can aid in preventing mosquito bites, but sometimes this may not be enough. Take a look at some of our other blogs on how to prevent mosquitoes from invading your yard and biting you during your outdoor activities.

At Mosquito Squad of New Haven & Fairfield County , we proudly provide pest control services that help protect your family from EEEV exposure in Wallingford, Lyme, Guilford, New Haven, Clinton and surrounding areas in Connecticut.

Help protect yourself and your loved ones from this virus and other mosquito-borne diseases by starting your Mosquito Squad of New Haven & Fairfield County service now. Call (203) 275-0078 today for your free estimate!

For more information on Eastern equine encephalitis virus, click here.

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