EIA Hold Order at Arapahoe Park Lifted

The EIA-positive mare was euthanized and a second exposed horse was transferred to a newly quarantined premises.

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The Colorado Department of Agriculture (CDA) State Veterinarian’s Office has released the hold order on the Arapahoe Park race track in Aurora, Colorado, put in place after a horse residing there tested positive for equine infectious anemia (EIA).

The office was informed that the EIA-positive mare was euthanized Monday (June 27) morning. A second exposed animal, a pony owned by the same person, was removed from the track to a newly quarantined premises.

Movement restrictions affecting horses at Arapahoe Park have been removed. Racing at the track has not been affected and will continue. The hold order prohibiting horses from entering or leaving the track was issued June 23.

The affected horse had been in Colorado less than 60 days. It appears that the horse was infected prior to coming to Colorado and previously tested negative for the disease in May of 2015. Because the disease is most commonly spread by biting flies and it is very early in Colorado’s fly season, the risk of disease transmission to other horses at the track appears to be relatively low

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