Five Texas Horses Confirmed with EIA
Since Sept. 13, officials at the Texas Animal Health Commission (TAHC) have confirmed two horses in Dallas County and three horses in Kaufman County with equine infectious anemia (EIA).

The Dallas County horses resided on separate premises; the Kaufman County horses resided on the same premises where EIA was reported on Sept. 13. All but one of the five horses, which resides in Dallas County, were euthanized. The premises will remain under quarantine until they have met TAHC requirements for release.

TAHC staff continues to work with owners and veterinarians to enact biosecurity procedures and monitor all exposed horses.

About EIA

Equine infectious anemia is a viral disease that attacks horses’ immune systems. The virus is transmitted through the exchange of body fluids from an infected to an uninfected animal, often by blood-feeding insects such as horseflies. It can also be transmitted through the use of blood-contaminated instruments or needles.

Coggins test screens horses’ blood for antibodies that are indicative of the presence of the EIA virus. Most U.S. states require horses to have proof of a negative Coggins test to travel across state lines.

Once an animal is infected with EIA, it is infected for life and can be a reservoir for the spread of disease. Not all horses show signs of disease, but those that do can exhibit:

  • Progressive condition loss;
  • Muscle weakness;
  • Poor stamina;
  • Fever;
  • Depression; and
  • Anemia.

EIA has no vaccine and no cure. A horse diagnosed with the disease dies, is euthanized, or must be placed under extremely strict quarantine conditions (at least 200 yards away from unaffected equids) for the rest of his life.