Eastern equine encephalitis (EEE) is a rare but potentially life-threatening viral disease that affects both humans and horses. Transmitted through the bite of an infected mosquito, EEE is most commonly found in the eastern United States, though cases have been reported in other regions as well. Understanding the risks and taking preventive measures can help protect you, your family, and your animals from this serious disease.

Adult Culex pipiens feeding on skin.

What Causes EEE?

EEE is caused by a virus carried by mosquitoes, particularly those found in freshwater swamps and marshes. Mosquitoes become infected when they bite birds carrying the virus. Once infected, mosquitoes can transmit the virus to humans, horses, and other animals through their bites.

Symptoms of EEE

EEE is a severe disease that can have devastating effects on both humans and horses.

  • In Humans: Symptoms include fever, headache, nausea, vomiting, and seizures. In severe cases, EEE can lead to coma and even death.
  • In Horses: Symptoms include fever, depression, incoordination, and seizures. Horses are particularly vulnerable to EEE, and the disease is often fatal in equines.

How to Protect Yourself from EEE

While EEE is rare, it’s crucial to take precautions, especially if you live in an area where the virus is prevalent. Here are some effective ways to reduce your risk of mosquito bites and EEE infection:

  1. Wear Protective Clothing: Opt for long sleeves and pants when spending time outdoors, especially during mosquito season.
  2. Use Insect Repellent: Apply insect repellents containing DEET or picaridin to exposed skin and clothing.
  3. Avoid Peak Mosquito Hours: Mosquitoes are most active during dusk and dawn. Limit outdoor activities during these times.
  4. Eliminate Standing Water: Mosquitoes breed in stagnant water. Regularly empty or remove items like birdbaths, buckets, and clogged gutters around your home.
  5. Schedule Professional Mosquito Control Services: Partnering with a trusted mosquito control service like YardGuard Mosquito can help create a mosquito-free environment around your property.

What to Do If You’re Bitten

If you are bitten by a mosquito, monitor yourself for symptoms of EEE. Seek immediate medical attention if you experience fever, severe headache, nausea, vomiting, or seizures. Early diagnosis and treatment can improve outcomes, though there is no specific cure for EEE.

Is There a Vaccine for EEE?

Currently, there is no vaccine available for humans, but there is a vaccine for horses that can help prevent the disease. If you own horses, consult your veterinarian about vaccination options. For humans living in high-risk areas, researchers are actively working on developing new treatments and preventive measures to combat EEE.

Stay Safe with YardGuard Mosquito

Protecting yourself and your loved ones from mosquito-borne diseases like EEE starts with effective mosquito control. YardGuard Mosquito offers eco-friendly solutions to reduce mosquito populations around your home and property. By scheduling regular mosquito control services, you can enjoy a safer, mosquito-free environment.

Eastern equine encephalitis is a serious disease, but it is preventable. By taking proactive steps to avoid mosquito bites and keeping your surroundings mosquito-free, you can significantly reduce your risk of infection. Stay informed, stay protected, and consider professional mosquito control services to safeguard your home and community.


For more information about YardGuard Mosquito’s eco-friendly mosquito control services, contact us today and take the first step toward a safer, healthier outdoor space.


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