After stakeholder input the Kansas Department of Agriculture has updated regulations related to Coggins test requirements. Key regulations that have been updated include intrastate EIA testing requirements and requirements for horses participating in showing or judging contests or other type of public display.

The regulation establishes the requirement of a negative EIA test (Coggins) for horses that are changing ownership or are used for exhibition purposes which must be completed in the previous 12 months. This requirement includes horses that originate outside the state of Kansas or from within the state of Kansas.

These regulation changes can be read in full here: KAR 9-7-14 

How is EIA transmitted?

The virus can be transmitted from an infected equine to a “clean” equine by biting flies, the use of unsterilized or contaminated medical instruments, or through a blood transfusion. This disease does not affect humans. KDA has identified a prescribed surveillance area within one-half mile of the affected premises, and is working with local officials and horse owners to identify any other horses that may have been within that surveillance area in order to test those animals.

The surveillance area is identified based on risk associated with the potential transfer of the disease. EIA is mechanically transmitted via the mouth parts of biting flies, and research has shown that the EIA virus survives for a limited time on the mouth parts of the fly vectors, so the area of possible exposure is limited to a relatively small radius around the affected premises. Symptomatic horses, those showing clinical signs, are more likely to transmit the disease compared to those that have an in apparent infection. It is estimated after visiting an asymptomatic carrier, only one out of every 6 million flies is likely to become a vector.

How common is EIA?

There are typically a small number of cases of EIA in the United States every year, although the disease is common in other parts of the world. EIA is controlled in the U.S. by regular testing before traveling across state lines and/or exhibition. The test for EIA is commonly called a Coggins Test.

Prevention and Control of EIA

There is no approved vaccine for EIA in the United States. In order to prevent infection, follow these guidelines:

• Practice good fly control by regular mucking of stalls, proper disposal of manure away from horse stabling areas and use of fly sprays or natural predators to minimize fly presence.
• Use a sterile needle and syringe for all injections or treatments.
• Disinfect any surgical or dental equipment thoroughly between horses. Remove all debris and blood with soap and water before disinfection.
• Only administer commercially licensed blood products.
• Use a sterile needle each time when puncturing a multi-dose medication bottle. Consult a veterinarian to demonstrate how to use sterile technique when drawing up medications.
• Require proof of a recent negative Coggins test at time of purchase or for new horses entering the premises. Require an EIA test for horses which have spent time at a premises where EIA-positive horses have been identified.
• Only participate in events that require evidence of a negative Coggins test for every horse entering the event to prevent disease introduction and spread.
• Separate horses with fevers, reduced feed intake and/or lethargy from your other horses and contact your veterinarian.

EIA Fact Sheet

More details about EIA can be found on this Fact Sheet.

Equine Biosecurity Fact Sheet

More details about biosecurity and keeping your horses healthy can be found on this Fact Sheet.