• Skip to primary navigation
  • Skip to main content
Texas and Southwestern Cattle Raisers Association

Texas and Southwestern Cattle Raisers Association

To Honor and Protect the Ranching Way of Life

  • Who We Are
    • Why Join
    • Leadership
    • Staff
    • Allied Members
    • FAQs
    • Newsroom
    • Sponsorships
    • Employment
  • What We Do
    • Theft and Law
    • Issues and Policy
    • Education
    • Young Cattle Raisers
    • The Cattleman Magazine
    • Cattle Raisers Insurance
    • Cattle Raisers Trading Co
  • Events
    • Cattle Raisers Convention
    • Summer Meeting
    • Policy Conference
    • Ranch Gatherings
    • Ranching 101
  • Membership Center
    • Membership Center Instructions
  • Join
  • Renew
  • Show Search
Hide Search

Two cases of eastern equine encephalitis confirmed in Texas

Eastern equine encephalitis has been confirmed in two East Texas horses from separate facilities by the Texas A&M Veterinary Medical Diagnostic Laboratory in College Station, according to agency officials.

The horses were in Newton and Orange counties. The Orange County case is approximately 10 miles from an eastern equine encephalitis case, which occurred in 2014.

As a reportable zoonotic disease, the Texas Department of State Health Services and the Texas Animal Health Commission were made aware of the positive test results. Human infection with eastern equine encephalitis, commonly known as EEE, is relatively infrequent in the U.S.

Of the neurologic diseases that affect horses, eastern equine encephalitis has the highest mortality rate, according to animal health experts. Both horses displayed classic signs: flaccid or droopy lips, dullness, muscle fasciculation, ataxia and head pressing. One of the horses displayed blindness.

“Highly effective vaccines are available for EEE, western equine encephalitis and West Nile virus,” said Dr. Terry Hensley, Texas A&M Veterinary Medical Diagnostic Laboratory assistant agency director and Texas A&M AgriLife Extension Service veterinarian.

“These equine neurologic diseases are preventable with proper vaccination. This is why it is so important to keep your horse current on their vaccinations.

“According to the attending veterinarians in these two cases, both horses were unvaccinated. On the Gulf Coast and especially with all the rain we have had, if you choose to vaccinate for any disease, do so for these neurologic diseases.”

If it is has been more than six months since your horse has been vaccinated, Hensley said, consult with your veterinarian about a booster.

Eastern equine encephalitis is a viral disease that normally cycles between wild birds and mosquitoes. As the virus infection rate increases in birds it is more likely to be transmitted by an infected mosquito that bites horses and humans. The virus abruptly attacks the central nervous system. The virus cannot be transmitted from horse to horse, or from a horse to a human. Horses and humans are considered “dead-end” hosts, which means if infected they cannot transmit the virus back to feeding mosquitoes, Hensley said.

Symptoms for neurologic diseases can be similar, so serologic samples were sent to the lab for neurologic testing. Hensley said it is hard to diagnose a neurologic case with only clinical symptoms. The veterinarians requested a variety of tests: Equine Herpesvirus-1, eastern equine encephalitis, West Nile virus, western equine encephalitis and Venezuelan equine encephalitis. Eastern equine encephalitis was confirmed positive for both horses, and all other tests were negative.

For more information on the Texas A&M Veterinary Medical Diagnostic Laboratory’s equine neurologic disease testing, visit tvmdl.tamu.edu, or contact the agency headquarters at 1-888-646-5623.

Written by:
kristin
Published on:
July 13, 2015

Categories: General

Recent Posts

Cow-calf Corner: Nitrate poisoning in cattle

August 8, 2022

Paul Beck, Oklahoma State University Extension Beef Nutrition Specialist All plants can contain …

Continue Reading about Cow-calf Corner: Nitrate poisoning in cattle

Cow-calf Corner: Retained ownership? – Part 1

August 8, 2022

Mark Z. Johnson, Oklahoma State University Extension Beef Cattle Breeding Specialist The impacts …

Continue Reading about Cow-calf Corner: Retained ownership? – Part 1

Cow-calf Corner: Beef trade supporting cattle and beef markets

August 8, 2022

Derrell S. Peel, Oklahoma State University Extension Livestock Marketing Specialist The latest …

Continue Reading about Cow-calf Corner: Beef trade supporting cattle and beef markets

Footer

Who We Are

Why Join
Leadership
Staff
Allied Members
FAQs
Newsroom
Sponsorships
Employment

What We Do

Theft and Law
Issues and Policy
Education
Young Cattle Raisers
The Cattleman Magazine
Cattle Raisers Insurance
Cattle Raisers Trading Co.
Texas and Southwestern Cattle Raisers Association

Information

Cattle Raisers Blog
News Releases
Bereavements
Events
Media Kit
Tip Hotline
Get Involved
Links

Membership

Membership Center
Membership Center Instructions
Join
Renew
  • Email
  • Facebook
  • Instagram
  • Twitter
  • YouTube

PO BOX 101988
FORT WORTH, TX 76185

1-800-242-7820

© 2022 Texas and Southwestern Cattle Raisers Association; All Rights Reserved.

COPYRIGHT | PRIVACY POLICY | TERMS OF USE

We Live For This Land