A Coggins test screens horses’ blood for antibodies that are indicative of the presence of EIA. | Photo: Erica Larson/The Horse

The Colorado Department of Agriculture’s State Veterinarian’s Office has been notified that another horse in that state has tested positive for equine infectious anemia (EIA). This is the third confirmed case of EIA in Colorado horses this year.

The investigation is ongoing but appears to be unrelated to the prior two cases of EIA in Colorado this year. After initial test results were received, confirmatory testing was completed at the National Veterinary Services Laboratory, in Ames, Iowa, on Nov. 2.

The CDA said the horse was tested at a veterinary clinic in Weld County as part of a prepurchase examination under the buyer’s name. This horse allegedly participated in unsanctioned horse races.  The investigation into the current location of the horse is ongoing