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Disease Alerts

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.



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Woodford, KY
Outbreak Identifier: 4614
Alert ID: 1982
March 11, 2021
Confirmed Case(s) - Official Quarantine

Kentucky Office of the State Veterinarian

Number Confirmed: 1;
Number Exposed: 27;
Age: 3; Gender: Mare; Breed: Thoroughbred (TB); 
Clinical Signs: Ataxia, Febrile; Horse Status: Affected And Alive;

Notes: Equine Herpes Myeloencephalopathy (EHM) has been confirmed in a 3yo thoroughbred filly in Woodford County, Kentucky. The filly reportedly had a fever on Saturday, and was referred to a veterinary hospital in Lexington Tuesday evening after becoming unstable and ataxic. The training facility was placed under restriction pending completion of diagnostic testing. Animal Health Officials have been present at the facility, previously imposed restrictions remain in place, and 27 exposed horses had samples (nasal swabs and whole blood) collected earlier today and submitted for PCR Testing. The horse was reported last night as showing signs of improvement. There is no connection to any other EHV1 incidents. In addition to the affected premises, precautionary measures have been implemented at Turfway Park (live race meet) with all horses shipping in to race being required to stable in the receiving barn – unless trainer has permanently assigned stalls at Turfway. In addition to adjustment of stabling, biosecurity protocols have been elevated. The KY State Veterinarians office has personnel onsite examining health documents and coordinating efforts with the KY Horse Racing Commission’s staff;