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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 Alerts: August 29, 2025 Strangles in King County, WA

August 31, 2025 by Equine Disease Communication Center

Source: State Veterinarian Office and Attending Veterinarian Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Suspected: 13Number Exposed: UnknownFacility Type: Private FacilityComments: Just reported to SAHO. Original horse came from CA first of June and infected the barn. Tested first of July. Under vet care. For more information about Strangles, go to https://www.equinediseasecc.org/strangles See past published Outbreak … Read More

Outbreak Alerts: August 27, 2025 – Equine Herpesvirus- Respiratory, Sacramento County, CA

August 29, 2025 by Equine Disease Communication Center

Source: Attending Veterinarian Confirmed Case(s) – No Quarantine Number Confirmed: 2; Number Suspected: 2; Number Exposed: 10; 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 named but the general … Read More

Outbreak Alerts: August 26, 2025 West Nile Virus in 2 more counties in Utah!

August 26, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Utah Department of Agriculture and Food Utah County, UTNumber Confirmed: 1 Number Exposed: 3Facility Type: Private FacilityHorse 1: Age: 6; Gender: Mare; Breed: Quarter Horse (QH); Usage: Breeding; Onset of Clinical Signs: 8/15/2025; Clinical Signs: Off feed and facial fasiculations; Horse Status: Recovering; Vaccination Status: Undervaccinated Weber County, UTNumber Confirmed: 1 Number Exposed: UnknownFacility Type: Training FacilityHorse 1: Age: 2; Gender: Mare; Onset of Clinical Signs: 8/17/2025; Clinical Signs: Wobbly for a few days, unresponsive to anti-inflammatories. … Read More

Outbreak Alert: August 26, 2025 – Equine Infectious Anemia in Riverside County, CA

August 26, 2025 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 1 Horse 1: Age: 13; Gender: Gelding; Breed: Quarter Horse (QH); Comments: A 13–year–old Quarter Horse gelding in Riverside County was confirmed positive for Equine Infectious Anemia (EIA). One (1) potentially exposed horse on the home premises has initially tested negative for EIA … Read More

Outbreak Alerts: August 25, 2025 West Nile Virus in Franklin County, ID

August 25, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: State Veterinarian Number Confirmed: 1Number Suspected: UnknownFacility Type: Equine Clinic Horse 1: Age: 12; Gender: Mare; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 8/20/2025; Clinical Signs: neurologic; Horse Status: Affected And Alive; 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 website as they occur and will include … Read More

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

August 25, 2025 by Equine Disease Communication Center

Confirmed Case(s) – No Quarantine Source: Assistant State Veterinarian Number Confirmed: 1Number Suspected: UnknownNumber Exposed: 40Facility Type: Training Facility Horse 1: Age: 7; Gender: Gelding; Breed: Draft; Usage: Pulling; Onset of Clinical Signs: 8/13/2025; Clinical Signs: Ataxic and weak in the hind end. Down twice and lifted.; Horse Status: Recovering; 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: 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: July 25, 2025 – Equine Herpesvirus- Respiratory, Kitsap County, WA

July 30, 2025 by Equine Disease Communication Center

Source: State Veterinarian Office and Attending Veterinarian Confirmed Case(s) – Official Quarantine Number Confirmed: 1 Number Exposed: UnknownFacility Type: Boarding FacilityComments: Work ongoing with facility and attending veterinarian. Closely monitoring. Had been at Oregon show middle of June. Low viral load. Also positive for strangles but had been vaccinated in January. Flu and Rhino vaccinated … Read More

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