Source:
State Veterinarian Office
Number Confirmed: 1; Number Exposed: 14; Facility Type: Fairgrounds; Age: 7; Gender: Mare; Breed: Quarter Horse (QH); Usage: Reining; Onset of Clinical Signs: 4/17/2023;Clinical Signs: Ataxia with progression of neurological signs and behavioral changes; Confirmation Date: 4/20/2023; Horse Status: Euthanized; Vaccination Status: Vaccinated;Comments: The index horse was removed from the barn on Monday, April 17th and transferred to an equine hospital where is was later euthanized due to progression of clinical symptoms. The state veterinarian was notified of the positive EHV-1 results Thursday afternoon and through initial investigation, 14 horses were identified to have direct exposure with the index horse. Those horses were quarantined and isolated Thursday evening and testing was done on Friday, April 21 with negative PCR results on both nasal swab and buffy coat. Those known exposed horses will remain in isolation and quarantine will be released after a minimum of 14 days and 2 negative tests at least 7 days apart. All horses on the premises have been quarantined until states of destination have been contacted (as of end of day Friday, April 21, 2023, all of those states have been contacted). All horses in the barn where the index horse was stalled will receive 2 doses of an amniotic product to reduce viral shedding and be quarantined for 14 days with monitoring of temperatures and clinical symptoms of illness. Quarantine will either be completed on site or with permission from the state veterinarian in the state of destination, at the premises of the owner/trainer/agent. State officials continue to work with show managers and veterinarians on investigation and to monitor the situation.For more information go to: https://www.equinediseasecc.org/equine-herpesvirus