Saskatchewan Horse Tests Positive for EIA

The Rosemount No. 378 premises is under official quarantine.
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Saskatchewan, Canada
The Canadian Animal Health Surveillance System has confirmed a horse residing on a Rosemount No. 378 premises is positive for equine infectious anemia (EIA). | Wikimedia Commons
The Canadian Animal Health Surveillance System has confirmed a horse residing on a Rosemount No. 378 premises is positive for equine infectious anemia (EIA). The horse had been tested to comply with entry requirements to an event and had not been showing clinical signs of disease.

The affected horse and other equids on the premises are under official quarantine until euthanasia of the confirmed case and follow-up testing are complete. The Canadian Food Inspection Agency is investigating the case and performing trace-out to determine whether any other horses have been exposed.

The Equine Disease Communication Center released this information on May 12, 2022.

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 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.

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