Outbreaks | Equine Disease Communication Center

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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Equine Herpesvirus- Neurologic

Pierce County, WI

Outbreak Identifier: 5551

Alert ID: 2948

April 05, 2023

Confirmed Case(s) - Official Quarantine

Source: Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1;
Number Exposed: 40;
Facility Type: Training Facility;
Age: 20; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/22/2023;
Clinical Signs: Ataxia, urine dribbling, tachycardia; Confirmation Date: 3/23/2023; Horse Status: Recovering; Vaccination Status: Vaccinated;
Comments: Gelding was moved to a veterinary school teaching hospital for treatment. Facility is quarantined and temperatures are being taken twice daily for all equines. Following USAHA guidelines. One other equine became febrile with no neurologic symptoms. It also tested qPCR positive for Equine herpesvirus 1 (EHV-1 gB gene, universal EHV-1 test) and Equine herpesvirus 1 non-neuropathogenic (A2254 genotype) in nasal swab sample. For more information go to: https://www.equinediseasecc.org/equine-herpesvirus

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