Equine Infectious Anemia

November 3, 2017 update: Four of the original premises under quarantine for EIA have completed the required 60-day retest. All horses on these premises have been confirmed negative for EIA, resulting in release from the quarantine. All horses on premises remaining under quarantine will be tested once they have met the 60-day minimum.

October 25, 2017 update: A premises under official quarantine for EIA in Finney County presented all horses for the 60-day retesting protocol. Two horses, which were previously EIA-negative, tested positive at this retest. Both of the confirmed EIA-positive horses have been humanely euthanized.

Both horses had been maintained on the premises under the official quarantine since August 11, 2017 pending the 60-day retest. All other horses from this premises will remain under official quarantine for an additional 60 days pending a negative EIA test.

Counties involved:

  • Finney County: 12 horses (9 EIA+ and 3 EP+)
  • Kearny County: 2 horses (both EIA+)
  • Haskell County: 1 horse (EP+)

History: 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 positive horses on this premises have been humanely euthanized.

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

There are more than 40 exposed horses on six different premises where EIA-positive or EP-positive horses were found, all of which are under official quarantine pending retest. All confirmed EIA-positive horses had recently been on the index premises, which was an unsanctioned, informal horse racing facility in Finney County.

State, federal and accredited veterinarians performed confirmation and surveillance testing. Horses are 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. Kansas has had nine positive horses in the past ten years; three in 2007, two in 2008 and four in 2016.

Horse owners who have concerns about their animal’s health or questions about possible exposure should contact your local veterinarian. If you have other questions, please call KDA–DAH at 785-564-6601.

Additional Information about EIA

  • 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