Equine infectious anemia (EIA) is a viral disease of horses most frequently transmitted by large biting flies between horses in close proximity. There is no vaccine or treatment for EIA. Once a horse is infected, it remains infected for life and is always a potential reservoir for spread of the disease.
EIA infected horses must be permanently quarantined and isolated or be euthanized to prevent the disease from spreading to other horses (Minnesota Rules 1721.0260).
Horses must have a negative test for EIA within 12 months prior to importation or attendance at public exhibitions in Minnesota.
Veterinarians can request additional Equine Infectious Anemia laboratory test forms (VS 10-11) from our online federal forms request page.