Outbreak

Confirmed Case(s) – Official Quarantine Source: Attending Veterinarian Number Suspected: Unknown; Number Exposed: Unknown; Facility Type: Veterinary Hospital; Comments: Hospitalized horse with consistent EHM signs with known exposure to Waco facility; For an up-to-date count of EHM cases tied to this outbreak, please visit HERE For more information go to: https://www.equinediseasecc.org/equine-herpesvirus See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication …

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Confirmed Case(s) – Official Quarantine Source: Private Practitioner Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Facility Type: Private Facility; Comments: This case is associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event; For an up-to-date count of EHM cases tied to this outbreak, please visit HERE For …

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Confirmed Case(s) – Official Quarantine Source: Private Practitioner Number Confirmed: 1; Number Suspected: 1; Number Exposed: Unknown; Facility Type: Private Facility; Comments: This case is associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event; For an up-to-date count of EHM cases tied to this outbreak, please visit HERE For …

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Confirmed Case(s) – Official Quarantine Source: State Veterinarian’s Office Number Confirmed: 1; Facility Type: Private Facility;  Horse 1: Age: 13; Gender: Mare; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/18/2025; Clinical Signs: Febrile and now showing neurological signs; Confirmation Date: 11/20/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown; Comments: Originally EHV-1 positive with no neurological signs but developed neurological signs overnight. This horse was exposed to …

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Confirmed Case(s) – Official Quarantine Source: Attending Veterinarian and TAHC Number Confirmed: 1; Number Exposed: 2; Facility Type: Private Facility;  Horse 1: Age: 23; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/19/2025; Clinical Signs: Ataxia, urine dribbling; Confirmation Date: 11/20/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown; Comments: This case is associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World …

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Confirmed Case(s) – Official Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Suspected: 1; Number Exposed: Unknown; Number Euthanized: 1; Facility Type: Veterinary Hospital; Comments: Horse presented on 11/17/25; recumbent within an hour of admission. Euthanized after 48 hours of recumbency.; This horse was exposed to EHV at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event in …

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Confirmed Case(s) – Official Quarantine Source: Oklahoma State Veterinarian Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Comments: This horse was exposed to EHV at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event in Waco, TX.. For an up-to-date count of EHM cases tied to the Waco, Texas event, please …

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Confirmed Case(s) – Official Quarantine Source: Attending Veterinarian and TAHC Number Confirmed: 1; Number Exposed: 9; Facility Type: Private Facility;  Horse 1: Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/12/2025; Clinical Signs: Fever, nasal discharge, mild hindlimb ataxia- dragging toes occasionally.; Confirmation Date: 11/18/2025; Horse Status: Affected And Alive; Vaccination Status: Vaccinated; Comments: This case is associated with the EHM outbreak that originated at the Women’s …

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Confirmed Case(s) – Official Quarantine Source: Attending Veterinarian Number Confirmed: 2; Number Exposed: Unknown; Number Euthanized: 1; Facility Type: Private Facility;  Horse 1: Gender: Gelding; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/18/2025; Clinical Signs: Weak rear end Depression / Lethargy; Confirmation Date: 11/19/2025; Horse Status: Isolated; Vaccination Status: Status Unknown; Horse 2: Breed: Quarter Horse (QH); Clinical Signs: Neurologic signs; Horse Status: Euthanized;  Comments: Both cases are associated with the EHM outbreak that originated at …

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