Texas horse positive for EIA

One horse in Terry County, Texas, was euthanized after testing positive for EIA, and the premises is under official quarantine.
Head of horse looking over the stable doors. Young stallion in a stable.

The Texas Animal Health Commission (TAHC) has confirmed that one horse at a barn in Terry County tested positive for equine infectious anemia (EIA) on December 29. The horse has been euthanized, and the premises is under official quarantine. The quarantine will not be released until TAHC’s requirements are met. TAHC and staff are working closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.

EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. The EDCC is an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.

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.

A 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 body 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.

Brought to you by Boehringer Ingelheim, The Art of the Horse

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