10/09/2026
There has been one case of Equine Infectious Anemia (EIA) identified recently in the area around Perth. At the time of testing, the horse did not show any symptoms. We want to provide our clients with some information about the disease.
EIA is a virus that could be spread to all equids (horses, ponies, donkeys, and mules). Signs vary, but most horses show no sign of the disease if they are infected. Possible signs of acute infection include fever, inappetence, and sudden death. Chronic infection could lead to weight loss, weakness, anemia, and swelling of the limbs or body.
If a horse is infected with EIA, it is a lifelong infection with no known cure. There is no vaccine available for prevention. The infection is transmitted through blood, so can be spread by biting insects, or contaminated needles, syringes or other equipment. Because of this, infected horses are always a source of spread to other horses.
The following is a list of steps owners can take to protect their horses, based on CFIA recommendations:
Use strict hygiene practices when vaccinating or collecting blood samples
Use disposable needles and syringes, and do not use the same needle on more than one horse
Implement insect control measures, especially fly control
Perform EIA testing (commonly known as Coggins testing) before moving horses, especially to shows or when moving barns
If performing EIA testing after a possible exposure, the incubation period could be up to 60 days, so testing before this time could produce a false negative.
Be cautious and use good biosecurity when around horses of unknown EIA status
Isolate all horses that are new to the barn until they have been tested for EIA
Test equines if they are showing clinical signs of disease
Abide by the national EIA control program
Consult your veterinarian if you suspect your equine may be infected with EIA
For more information, visit the CFIA website at : Equine infectious anemia - inspection.canada.ca