Outbreak Alert Archives – Page 4 of 23 – The Northwest Horse Source

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Outbreak Alerts: August 22, 2025 West Nile Virus in Utah County, UT

August 25, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Assistant State Veterinarian Number Confirmed: 1Number Suspected: 40Number Exposed: UnknownFacility Type: Private Facility Horse 1: Age: 15; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Ranch Horse; Onset of Clinical Signs: 8/10/2025; Clinical Signs: Initial ataxia and weakness in the hind end, down the next day and death on day 3.; Horse Status: Deceased; Vaccination Status: Unvaccinated; Comments: Rodeo horses on premise vaccinated, but not ranch horses … Read More

Outbreak Alerts: August 19, 2025 West Nile Virus in Franklin County, ID

August 19, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: State Veterinarian Number Confirmed: 1Number Exposed: 5Number Euthanized: 1Facility Type: Private Facility Horse 1: Age: 13; Gender: Mare; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 8/12/2025; Clinical Signs: acute onset ataxia; unable to rise after 24 hours; Horse Status: Euthanized; Vaccination Status: Unvaccinated; See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are listed on our EDCC … Read More

Outbreak Alerts: July 31, 2025 Strangles in Pierce County, WA

July 31, 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: Purchased out of state 2 weeks ago. under veterinary 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 current disease outbreaks are listed on our … Read More

Outbreak Alerts: May 20, 2025 Pigeon Fever in King County, WA

May 20, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: State vet office Number Confirmed: 1Number Exposed: UnknownFacility Type: Private Facility 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 … Read More

Outbreak Alerts: May 02, 2025 Equine Influenza in Clallam County, WA

May 4, 2025May 3, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Voluntary Quarantine Source: State Veterinarian Office and Attending Veterinarian Number Confirmed: 1Number Suspected: 2Number Exposed: UnknownFacility Type: Private FacilityComments: Under vet care and self quarantine. For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are listed on our EDCC … Read More

Outbreak Alerts: April 28, 2025 Equine Influenza in Kittitas County, WA

April 30, 2025 by Nicole Sorbo

Confirmed Case(s) – No Quarantine Source: State Veterinarian Office and Attending Veterinarian Number Confirmed: 1Number Suspected: 3Number Exposed: UnknownFacility Type: Private FacilityComments: Under vet care and self quarantine For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts

Outbreak Alerts: April 28, 2025 Equine Influenza in Spokane County, WA

April 30, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: State Veterinarian Office and Attending Veterinarian Number Confirmed: 2Number Suspected: 8Number Exposed: UnknownFacility Type: Boarding FacilityComments: Under vet care. For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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 … Read More

Outbreak Alerts: April 14, 2025 Equine Influenza in King County, WA

April 15, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: State Veterinarian Office and Attending Veterinarian Number Confirmed: 2Facility Type: Private Facility Comments: Under vet care. For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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 … Read More

Outbreak Alerts – April 02, 2025 – Equine Herpesvirus- Neurologic in Alameda County, CA

April 2, 2025 by Equine Disease Communication Center

Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 75 Horse 1:Age: 22 Gender: Mare Breed: Trakhener Clinical Signs: ataxia, limb edema, trouble urinating Comments: A 22-year-old Trakehner mare from Alameda County displaying neurologic signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 (EHV-1). The mare is currently under veterinary care at … Read More

Outbreak Alert: March 25, 2025 – Equine Infectious Anemia in San Bernardino County, CA

March 31, 2025March 25, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 2 Horse 1: Age: 7; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing; Comments: A 7–year–old Quarter Horse gelding in San Bernardino County was confirmed positive for Equine Infectious Anemia (EIA). Two (2) potentially exposed horses on the home premises have been tested for EIA … Read More

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