Equine Infectious Anemia

  • What is EIA?

  • How is EIA transmitted?

  • How common is EIA?

  • Prevention and Control of EIA

  • EIA Fact Sheet

  • Equine Piroplasmosis Factsheet

  • Equine Biosecurity Fact Sheet

EIA Outbreak in 2017

In August 2017, the Kansas Animal Health Commissioner was notified that a horse near Garden City tested positive for Equine Infectious Anemia (EIA) after a routine Coggins test. This initiated follow-up testing of all horses on the index premises, which resulted in the discovery of five additional EIA-positive horses, and one horse tested positive for Equine Piroplasmosis (EP).

All horses within a half-mile surveillance zone surrounding the index positive premises were tested. No additional positives were detected in that zone.

There were more than 40 exposed horses on six different premises in Finney, Kearny and Haskell counties where additional EIA-positive or EP-positive horses were found. All confirmed EIA-positive horses had recently been on the index premises, which was an unsanctioned, informal horse racing facility in Finney County. Exposed horses were put under quarantine for a minimum of 60 days and then retested. All positive horses were humanely euthanized.

State, federal and accredited veterinarians performed confirmation and surveillance testing. Horses were confirmed EIA or EP positive by the National Veterinary Service Laboratory in Ames, Iowa.

More than 1,300 horses were tested for EIA in Kansas through surveillance and routine testing in August 2017. Prior to that time, Kansas had nine positive horses in the previous ten years; three in 2007, two in 2008 and four in 2016.