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Outbreak UPDATE: October 09, 2024 – Equine Infectious Anemia – Multiple States

Equine Rhinitis Virus-B

Source: USDA-APHIS-Veterinary Services Number Confirmed: 16Facility Type: RacetracksComments: Multi-State Equine Infectious Anemia Outbreak in Quarter Horse Racehorses  On September 20th and 24th, the National Veterinary Services Laboratories (NVSL) confirmed equine infectious anemia (EIA)-positive results in 4 Quarter Horse racehorses that were part of a group recently moved from racing in New Mexico …

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Outbreak Alerts: October 08, 2024 – West Nile Virus – El Paso County, CO

Equine Rhinitis Virus-B

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 …

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Colorado has confirmed four cases of equine West Nile Virus (WNV) so far in 2024

West Nile Virus
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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, …

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Outbreak Alerts: October 03, 2024 – Equine Infectious Anemia – Nacogdoches County, Texas

Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 1Number Suspected: Unknown Horse 1: Horse Status: EuthanizedComments: Texas Animal Health Commission (TAHC) officials confirmed equine infectious anemia in a quarter horse on a Nacogdoches County premises. The premises has been quarantined and will not be released until TAHC’s requirements are …

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Outbreak Alerts: September 25, 2024 – West Nile Virus – Douglas County, CO

Equine Rhinitis Virus-B

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 …

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Outbreak Alerts: September 20, 2024 – Equine Infectious Anemia – Dora Ana County, NM

Equine Rhinitis Virus-B

Source: State Veterinarian Confirmed Case(s) – Ongoing Investigation Number Confirmed: 5Number Exposed: 3Number Euthanized: 5Comments: Follow-up on initial investigation found one additional horse under same owner/trainer that was positive. All 5 horses have been euthanized. Remaining horses will be re-sampled in 60 days. Previous Alert: https://www.coloradohorsesource.com/outbreak-alerts-august-09-2024-equine-infectious-anemia-dona-ana-county-nm For more information:  https://www.equinediseasecc.org/equine-infectious-anemia See past published Outbreak …

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Outbreak Alerts: September 19, 2024 – West Nile Virus – Tooele County, UT

Equine Rhinitis Virus-B

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 …

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Outbreak Alerts: September 11, 2024 – West Nile Virus – Douglas County, CO

Equine Rhinitis Virus-B

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.  …

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Outbreak Alerts: August 30, 2024 – West Nile Virus – Cooke County, TX

Equine Rhinitis Virus-B

Source: Attending Veterinarian Confirmed Case(s) – Information Only Number Confirmed: 1Number Exposed: Unknown Horse 1: Age: YearlingGender: FillyBreed: Quarter Horse (QH)Usage: ReiningOnset of Clinical Signs: 8/28/2024Clinical Signs: Hyperesthesia, muzzle tremors, mild ataxia.Confirmation Date: 8/30/2024Horse Status: Affected And AliveVaccination 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 …

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Outbreak Alerts: August 30, 2024 – West Nile Virus – Weld County, CO

Equine Rhinitis Virus-B

Source: State Veterinarian’s Office Confirmed Case(s) – No Quarantine Number Confirmed: 1Number Exposed: 50Facility Type: Private Facility Horse 1: Age: 8Gender: GeldingBreed: Quarter Horse (QH)Usage: RacingOnset of Clinical Signs: 8/21/2024Clinical Signs: Ataxia, FeverConfirmation Date: 8/30/2024Horse Status: Affected And AliveVaccination 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 …

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