Wyoming officials confirm a case of Equine Infectious Anemia (EIA) was found in a horse located in Johnson County. The infected horse was euthanized.
The property associated with the infected horse, the horses on the premises, and adjacent properties within 200 yards have been quarantined, according to authorities. To date, the quarantined animals have tested negative for the disease. The horses will undergo another Coggins test in 60-days.
The disease was identified when a routine Coggins was pulled on the affected horse. EIA is a viral disease of the equine family (horses, donkeys, mules) that is transmitted by biting insects, primarily horse flies and deer flies. It can also be transmitted through infected needles being shared between horses.
Since there is no vaccine, no treatment, and no cure for the disease, the United States Department of Agriculture requires euthanasia or strict lifelong quarantine for horses testing positive for EIA. The disease is required to be reported to the state veterinarian and is regulated by both the Wyoming Livestock Board (WLSB) and USDA-APHIS.
State Veterinarian, Dr Jim Logan reminds veterinarians and horse owners that EIA test charts must be completed with all requested information, including pictures and descriptions of horse markings, horse’s name, age, breed, sex, and color, and complete owner and veterinarian information before the testing laboratory can legally test samples.
Affected horses may carry the disease without symptoms for years or they may become acutely or chronically infected. Signs of the disease include fever, depression, anemia, and dependent edema, sometimes progressing to loss of condition, lethargy, anorexia and, potentially, death.
To prevent the disease, officials say to practice insect control, good sanitation, and test new horses brought on your property. The use of only new and clean needles and syringes on each horse is also important to keeping the disease away.