EIA confirmed in Alberta horse

A horse in Ponoka County, Alberta, has tested positive for equine infectious anemia (EIA), and an outbreak investigation is underway.
Head of horse looking over the stable doors. Young stallion in a stable.

On February 21, a horse in Ponoka County, Alberta, tested positive for equine infectious anemia (EIA). The horse was being tested by an accredited veterinarian to fulfill a requirement for export to the United States.

The horse had been acquired from Whitecourt, Alberta, earlier this year. The veterinarian did not note any clinical signs of disease at the time of sampling. An investigation by the Canadian Food Inspection Agency (CFIA) is currently underway, and movement controls have been placed on the affected horse and other animals on the premises. Movement controls will remain in place until all disease response activities have been completed, including follow-up testing and destruction of positive cases. The CFIA might conduct trace-out activities at additional premises as outlined in the current policy.

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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