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Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1 For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.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, …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Suspected: 1Number Exposed: 3Facility Type: Farm Horse 1: Age: 6; Gender: Mare; Breed: Standardbred; Usage: Pleasure Riding; Onset of Clinical Signs: 7/24/2025; Clinical Signs: Weakness Ataxia; Confirmation Date: 7/29/2025; Horse Status: Deceased; Vaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Suspected: 1Number Exposed: UnknownFacility Type: Private Facility Horse 1: Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Horse Show; Onset of Clinical Signs: 6/30/2025; Clinical Signs: Grade 3-4 Ataxia of hind limbs.; Confirmation Date: 7/3/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated; For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts …
Source: State Veterinarian Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: UnknownNumber Euthanized: 1Facility Type: Farm Horse 1: Age: 7Gender: MareBreed: Quarter Horse (QH)Usage: BreedingOnset of Clinical Signs: 10/18/2024Clinical Signs: Lateral recumbency and unable to rise, stiff in hind limbsConfirmation Date: 11/14/2024Horse Status: EuthanizedVaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: UnknownFacility Type: Private Facility Number Confirmed: 1Number Suspected: 1Number Exposed: UnknownFacility Type: Stable Horse 1: Age: 18Gender: StallionBreed: Quarter Horse (QH)Usage: Horse ShowOnset of Clinical Signs: 10/17/2024Clinical Signs: Weakness AtaxiaHorse Status: Affected And AliveVaccination Status: Status Unknown For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: UnknownFacility Type: Private Facility Horse 1: Age: 2Gender: ColtBreed: Quarter HorseOnset of Clinical Signs: 9/28/2024Clinical Signs: Weakness Ataxia Anorexia Abnormal MentationConfirmation Date: 10/2/2024Horse Status: RecoveringVaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts …
Colorado Department of Agriculture Animal Health Division From the Quarterly Newsletter: Summer/Fall 2024 The first case, an unvaccinated 18-month-old Quarter Horse filly from Pueblo County was euthanized on July 14, 2024, after presenting with ataxia, anorexia, abnormal mentation, recumbency, and cranial nerve deficits. Treatment was initiated but was unsuccessful. Since mid-July, …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Suspected: 1Number Exposed: UnknownFacility Type: Private Facility Horse 1: Age: 8Gender: MareBreed: Tennessee Walking HorsesOnset of Clinical Signs: 9/3/2024Clinical Signs: Weakness, ataxiaConfirmation Date: 9/19/2024Horse Status: Affected And AliveVaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak …
Source: Attending veterinarian Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: Unknown Horse 1: Age: 8Gender: MareBreed: Quarter Horse (QH)Usage: RodeoOnset of Clinical Signs: 9/13/2024Clinical Signs: Ataxia Hyperesthesia Muscle TremorsConfirmation Date: 9/19/2024Horse Status: RecoveringVaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication …
Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Suspected: 1Number Exposed: 1Facility Type: Private Facility Horse 1: Age: 20Gender: MareBreed: Tennessee Walking HorsesOnset of Clinical Signs: 9/3/2024Clinical Signs: Weakness Ataxia Fell down one timeConfirmation Date: 9/5/2024Horse Status: Affected And AliveVaccination Status: Unvaccinated For more information about West Nile Virus go to: WNV factsheet. …
