Does Eee affect horses?

The equine encephalitis viruses are mosquito transmitted diseases that can cause severe inflammation of the brain (encephalitis) in horses and humans. As the names suggest, Eastern equine encephalitis (EEE) most commonly occurs in the Eastern United States and Canada.

Is EEE fatal in horses?

Signs of EEE in horses include fever; a sleepy appearance; some muscle twitches of the head, neck, shoulder and flank; and a weak, staggering gait. Affected animals are soon down, unable to stand. There is no effective treatment. The fatality rate is 90 percent or higher.

How effective is the EEE vaccine for horses?

“The mortality rate for WNV is 30 percent and up to 90 percent for EEE,” said Charlie Broaddus, DVM, VDACS state veterinarian. “Vaccinations for WNV and EEE are highly effective in minimizing disease, if given appropriately.

Can horses be vaccinated against EEE?

Immunizations against EEE and WEE are core prophylaxis for all horses residing in or traveling to North America. The choice to immunize against VEE is a risk-based assessment of the horse’s potential exposure. VEE is a reportable foreign animal disease.

Do horses get encephalitis?

The equine encephalitis viruses are mosquito transmitted diseases that can cause severe inflammation of the brain (encephalitis) in horses and humans. As the names suggest, Eastern equine encephalitis (EEE) most commonly occurs in the Eastern United States and Canada.

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What is the difference between EEE and WEE?

Western equine encephalitis (WEE), as the name implies, is found primarily in the western United States. The WEE virus is very similar to the one that causes EEE, and it produces similar signs, including fever and depression, ataxia0, head pressing, paralysis and convulsions. WEE, however, is far less deadly than EEE.

What are the first signs of EEE?

Severe cases of EEE infection begin with the sudden onset of headache, high fever, chills, and vomiting that may progress into disorientation, seizures, encephalitis (inflammation of the brain), and coma.

How likely is it to get EEE?

People who engage in outdoor work and recreational activities in endemic areas are at increased risk of infection. Persons over age 50 and under age 15 seem to be at greatest risk for developing severe disease when infected with EEEV. Overall, only about 4-5% of human EEEV infections result in EEE.

Do all mosquitoes carry EEE?

EEE is spread only from infected mosquitoes. Infected mosquitoes also are the primary way people become infected with WNV, although a few cases of WNV have been transmitted by blood transfusion, organ transplantation, from a pregnant woman to her infant and through breastfeeding.

Is there a vaccine for EEE virus?

Actually, there is a human vaccine for eastern equine encephalitis (EEE), but it has never been approved for public use. The U.S. Army Medical Research Institute of Infectious Diseases—the military medical research institute at Fort Detrick in Maryland—developed a human EEE vaccine in the mid-1980s.

What are the symptoms of equine encephalitis?

Signs and symptoms of neurologic disease include fever, headache, vomiting, diarrhea, seizures, behavioral changes, drowsiness, and coma. In infants, neurologic disease often occurs soon after onset; in older children and adults, encephalitis may occur after several days of systemic illness.

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