Equine Disease Communication Center

Updates on current disease outbreaks are listed on our EDCC website 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. All information is sourced from: http://equinediseasecc.org/alerts/outbreaks

Outbreak Alert: November 21, 2025 – Equine Influenza in Lancaster County, NE

November 24, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Facility Type: Boarding Facility; Horse 1: Age: 16; Gender: Gelding; Breed: Morgan; Usage: Trail Riding; Onset of Clinical Signs: 11/7/2025; Clinical Signs: Snotty nose, cough; Confirmation Date: 11/13/2025; Horse Status: Recovering; Vaccination Status: Status Unknown; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are listed on our …

Outbreak Alerts: November 21, 2025 – Equine Herpesvirus- Neurologic in Larimer County, CO

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Neurologic in Fort Bend County, TX

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Neurologic in Bell County Texas, TX

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Respiratory – Oklahoma County, OK

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 visit HERE See past published Outbreak …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Neurologic in Mayes County, OK

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Neurologic in Wharton County, TX

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Neurologic in Montgomery County, TX

December 8, 2025November 24, 2025 by Equine Disease Communication Center

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 …

Outbreak Alerts: November 20, 2025 – Equine Herpesvirus- Respiratory – Larimer County, CO

December 8, 2025November 24, 2025 by Equine Disease Communication Center

Source: State Veterinarian Number Confirmed: 1; Number Exposed: 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; Confirmation Date: 11/20/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown; Comments: EHV-1 positive but no neurological signs. This horse was exposed to EHV at the event in Waco, TX. The horse spiked a mild fever after returning home …

Outbreak Alerts: November 19, 2025 – Equine Herpesvirus- Neurologic in McLennan County, TX

December 8, 2025November 19, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: Texas Animal Health Commission Number Confirmed: 2; Comments: For more information, about EHM cases in Oklahoma and Texas tied to the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event held Nov. 5-9 in Waco, Texas, and the cancellation of the Barrel Futurities of America …