EIA Confirmed in Arizona Horse
A horse in Maricopa County, Arizona, is positive for equine infectious anemia (EIA), and three additional horses are exposed.
A horse in Maricopa County, Arizona, is positive for equine infectious anemia (EIA), and three additional horses are exposed. | Wikimedia Commons

A horse at a private facility in Maricopa County, Arizona, has been confirmed positive for equine infectious anemia (EIA). Three additional horses are exposed. The affected horses are under official quarantine.

EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. The EDCC is an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.

About EIA

Equine infectious anemia is a viral disease that attacks horses’ immune systems. The virus is transmitted through the exchange of body fluids from an infected to an uninfected animal, often by blood-feeding insects such as horseflies. It can also be transmitted through the use of blood-contaminated instruments or needles.

Coggins test screens horses’ blood for antibodies that are indicative of the presence of the EIA virus. Most U.S. states require horses to have proof of a negative Coggins test to travel across state lines.

Once an animal is infected with EIA, it is infected for life and can be a reservoir for the spread of disease. Not all horses show signs of disease, but those that do can exhibit:

  • Progressive body condition loss;
  • Muscle weakness;
  • Poor stamina;
  • Fever;
  • Depression; and
  • Anemia.

EIA has no vaccine and no cure. A horse diagnosed with the disease dies, is euthanized, or must be placed under extremely strict quarantine conditions (at least 200 yards away from unaffected equids) for the rest of his life.

Share
Related Articles
Silhouette of a beautiful Arabian horse against sun shining thro
Unvaccinated Florida Pony Positive for EEE
Caballo con perfil recortado sobre fondo negro
Michigan Gelding Positive for Strangles
horse nose
Florida Mare Positive for Strangles
Horse with flies around the eye in summer
Florida Horse Positive for EEE
Newsletter
Don’t miss an important EDCC Health Alert! Get alerts delivered straight to your inbox by signing up for Horse & Rider’s newsletter.

"*" indicates required fields

Name*
Country*

Additional Offers

Additional Offers
This field is for validation purposes and should be left unchanged.