11/02/2026
A negative Coggins is more than a requirement for travel, shows, or boarding—it’s an important part of protecting our equine community.
Do you know what your horse’s Coggins test actually screens for? Take a moment to learn about Equine Infectious Anemia (EIA), how it spreads, and why routine testing matters.
Thank you to the American Association of Equine Practitioners (AAEP) for sharing this important information.
Have questions about your horse’s Coggins testing? Give our office a call!
Most equine owners know a negative Coggins test is needed to cross state lines, enter a competition, or board at a barn. But what does “negative Coggins” actually mean? 🐴
A Coggins is a blood test, performed only by USDA-approved laboratories, that checks for antibodies to Equine Infectious Anemia (EIA). EIA is a potentially fatal, blood-borne viral disease that causes persistent infection in equids nearly worldwide. It is most commonly spread through contaminated needles, syringes, surgical instruments, dental equipment, and blood transfusions, and it can also be transmitted by biting flies.
⚠️ Clinical signs can range from acute illness to no apparent signs at all, but the infection never goes away. Once a horse tests positive, it is a lifelong source of transmission. With no vaccine or treatment available, owners can only choose between lifelong quarantine and humane euthanasia to prevent outbreaks.
Learn more about EIA:
🔗 AAEP: Equine Infectious Anemia (EIA) Disease Guidelines – AAEP
🔗 Equine Disease Communication Center: https://www.equinediseasecc.org/equine-infectious-anemia