At Potlatch Veterinary Clinic all of our veterinarians are accredited. This allows us to perform blood draws to send out bloodwork for equine infectious anemia (EIA) or Coggins testing. For horses, donkeys and mules, we also offer digital 30 day health certificates and digital 6 month Extended Equine Certificates of Veterinary Inspection (EECVIs). By using an electronic health certificate and Coggins, you can have your paperwork in the palm of your hand (i.e. cell phone) at all times. For more information or to obtain your equine’s information, visit the GVL (GlobalVetLink) website at

What is Coggins testing?
A Coggins test is a blood test that checks for Equine Infectious Anemia or EIA. EIA is a viral disease that is a state regulated disease. EIA is transmitted by biting flies (particularly horseflies) as it is a blood-borne disease.

What is EIA?
Equine Infectious Anemia, or EIA, is a blood-borne infectious viral disease. It causes persistent infection. There can be variable clinical signs from no symptoms to mild fever to small hemorrhages, weakness weight loss, depression, disorientation and sometimes rapid death.

Does my horse have to get Coggins tested?
Any horse that is transported across state lines is legally required to have a health certificate issued by an accredited veterinarian within the last 30 days or 6 months, depending on the state, as well as proof of a negative Coggins test within the last 12 months.