Outbreak Alerts: December 01, 2022 – Equine Herpesvirus- Neurologic in Okanogan County, WA

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Confirmed Case(s) – Voluntary Quarantine

Source: State vet office.

Number Confirmed: 1

Number Exposed: 2

Facility Type: Private Facility

Age: 12

Gender: Gelding

Breed: Quarter Horse (QH)

Usage: Rodeo

Onset of Clinical Signs: 11/20/2022

Clinical Signs: Hanging head/depression. Thought to be colicky. Went down and owner euthanized.

Confirmation Date: 12/1/2022

Horse Status: Euthanized

Vaccination Status: Unvaccinated

Comments: A horse at a private facility in Okanogan County has tested positive for EHM. Other two(2) horses at owners home are quarantined and separate from other equids. College rodeo student in Walla Walla was headed home to Okanogan County for holiday when horse got sick.  Horses were previously at an outdoor boarding facility and they have not seen any sickness, but are monitoring.


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