Alerts Archives – The Northwest Horse Source

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Outbreak Alerts: November 22, 2025 – Equine Herpesvirus- Respiratory, Spokane County, WA

November 24, 2025 by Equine Disease Communication Center

Source: State Veterinarian Office and Attending Veterinarian Confirmed Case(s) – Official Quarantine Number Confirmed: 2; Facility Type: Private Facility; Comments: Horses have mild fevers but no other clinical signs. Combined tracheal wash was positive on PCR. Horses are doing well under vet care and quarantined at home. Both cases are associated with the EHM outbreak that originated … Read More

Outbreak Alert: November 18, 2025 – Equine Infectious Anemia in Riverside County, CA

November 19, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture Number Confirmed: 1; Number Exposed: 1; Number Euthanized: 1; Horse 1: Age: 13; Gender: Gelding; Breed: Quarter Horse (QH); Horse Status: Euthanized; Comments: A confirmed EIA positive equid must be euthanized or quarantined for life 200 yards away from any EIA negative equid as per USDA EIA program rules. Euthanasia was elected … Read More

Outbreak Alerts: November 03, 2025 Pigeon Fever in Ada County, ID

November 4, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Voluntary Quarantine Source: Private Practitioner Veterinarian Number Confirmed: 1; Number Suspected: 1; Number Exposed: 1; Facility Type: Private Facility; Horse 1: Age: 17; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 10/19/2025; Clinical Signs: Draining abscesses in left pectoral muscle and ventral abdomen; Confirmation Date: 10/27/2025; Horse Status: Recovering; Horse 2: Age: 8; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 10/20/2025; Clinical Signs: Draining abscess on ventral abdomen; Horse Status: Recovering; See past … Read More

Outbreak Alerts: October 31, 2025 – Equine Herpesvirus- Respiratory AND Equine Influenza in Beaverhead County, Montana

November 4, 2025 by Equine Disease Communication Center

Equine Herpesvirus- Respiratory Source: Attending VeterinarianConfirmed Case(s) – Voluntary QuarantineNumber Confirmed: 5Number Suspected: 10Number Exposed: 75Comments: This is the same location as Alert ID 4692. Four horses are dually infected with Equine Influenza. Equine Influenza Source: Attending VeterinarianConfirmed Case(s) – Voluntary QuarantineNumber Confirmed: 4Number Suspected: 10Number Exposed: 75Comments: This is the same location as Alert ID: 4691. … Read More

Outbreak Alerts: October 09, 2025 West Nile Virus in Lake County, OR

October 14, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Exposed: 3; Number Euthanized: 1; Facility Type: Farm; Previous Alerts: 4649 See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates 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 … Read More

Outbreak Alerts: October 08, 2025 West Nile Virus in Beaver County, UT

October 14, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Utah Department of Agriculture and Food Number Confirmed: 1 Number Exposed: 9 Facility Type: Farm Horse 1: Age: 3; Gender: Filly; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 10/1/2025; Clinical Signs: Reluctance to move and seemed painful with lip twitching. Treated with NSAIDs and antimicrobials for 4 days. Fully recovered; Confirmation Date: 10/7/2025; Horse Status: Recovered; Vaccination Status: Vaccinated See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts … Read More

Outbreak Alerts: October 07, 2025 West Nile Virus in Lake County, OR

October 7, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Attending Veterinarian Number Confirmed: 1 Number Exposed: 3 Facility Type: Farm See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates 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 … Read More

Outbreak Alerts: October 07, 2025 Strangles in Yakima County, WA

October 7, 2025 by Equine Disease Communication Center

Source: State Veterinarian Office and Attending Veterinarian Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: UnknownFacility Type: Private FacilityComments: Owner purchased horse and noticed snotty nose and abscess. Separated from others on property. Under vet care. For more information about Strangles, go to https://www.equinediseasecc.org/strangles See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on … Read More

Outbreak Alerts: October 07, 2025 Pigeon Fever in Ada County, ID

October 7, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Voluntary Quarantine Source: Private Practitioner Veterinarian Number Confirmed: 1Number Exposed: 1Facility Type: Private Facility Horse 1: Age: 11; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Companion; Onset of Clinical Signs: 9/30/2025; Clinical Signs: Enlarged prescapular lymph nodes, edema and draining abscesses in pectoral and ventral abdominal areas, afebrile; Confirmation Date: 10/4/2025; Horse Status: Affected And Alive; See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on … Read More

Outbreak Alerts: October 3, 2025 West Nile Virus in 3 Counties, in Utah!

October 5, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Utah Department of Agriculture and Food San Juan County, UT: Number Confirmed: 1Number Exposed: 4Facility Type: Farm Horse 1: Age: 5; Gender: Mare; Breed: Quarter Horse (QH); Usage: Breeding; Onset of Clinical Signs: 9/19/2025; Clinical Signs: Pregnant mare with forelimb ataxia. Treated by veterinarian with anti-inflammatories and antimicrobials. Ataxia resolving by the next day.; Confirmation Date: 9/29/2025; Horse Status: Recovering; Vaccination Status: Undervaccinated. Comments: housed close to … Read More

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