LINCOLN – The Nebraska Department of Agriculture (NDA) has confirmed a case of equine infectious anemia (EIA) in a horse in Colfax County. This is the first confirmed case of EIA in Nebraska since 2013. The horses on the infected premises have been quarantined and will be released after state regulations are met. NDA staff are working with the owner and local veterinarian to monitor potentially exposed horses.
EIA is an incurable, infectious viral disease spread through blood-to-blood contact. The virus can be transmitted from an infected equine to an uninfected equine by blood-feeding insects such as horseflies, deerflies, or stable flies, and by people using contaminated medical equipment, such as needles, syringes, and IV sets. There are currently no USDA-approved vaccines for EIA.
“Equine owners can help limit the spread of EIA by following strict biosecurity measures, by regularly testing equine for diseases such as EIA, and by prioritizing sanitary practices, especially when injecting horses,” said Dr. Roger Dudley, State Veterinarian. “Producers and veterinarians play an important role in limiting the spread of EIA and other bloodborne equine diseases by reporting sick equine.”
Common signs of EIA include, but are not limited to, fever, depression, low platelet count, anemia, red or purple spots on the mucous membranes, edema, muscle weakness, and muscle atrophy. EIA can appear as acute, chronic or inapparent. Clinical signs range from mild to severe and appear within a few weeks after infection. However, it may take 60 days or more for the horse to test positive. Infected animals that survive the disease become virus carriers and can infect other equids for life.
Owners can help protect their equine by implementing insect controls, keeping stables and facilities clean, eliminating standing water, using one needle per horse, separating infected equine from the healthy, and never using blood-contaminated medical equipment on multiple equids.
Nebraska has import restrictions for livestock coming into the state from states that have confirmed EIA cases. If you are considering moving an animal into Nebraska from an affected state, please call 402-471-2351 to learn more about the importation order.
EIA also affects exports. Individuals from Nebraska transporting animals and animal products to other states and countries should contact the destination state/country to learn about their import requirements before transporting animals.
EIA is a notifiable disease in all states. Individuals or practitioners who suspect or have concerns about EIA should contact NDA at 402-471-2351. For more information on EIA, visit:
