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EDCC

Outbreak Alerts: April 28, 2026 – Equine Infectious Anemia – Weld County, CO

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Equine Rhinitis Virus-B

Source: State Veterinarian’s Office Confirmed Case(s) – Ongoing Investigation Number Confirmed: 3; Number Exposed: 15; Number Euthanized: 3; Facility Type: Training Facility;  Horse 1: Age: 4; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing; Clinical Signs: Tested due to 60-day retest at previously positive premises; Confirmation Date: 4/13/2026; Horse Status: Euthanized;  Horse 2: Age: 3; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing; Clinical Signs: Tested for 60-day retest at previously positive premises.; Confirmation Date: 4/13/2026; Horse Status: Euthanized;  Horse 3: Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing; Confirmation Date: 4/13/2026; Horse Status: Euthanized;  …

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Outbreak Alerts: April 27, 2026 – Strangles – Douglas County, NE

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Equine Rhinitis Virus-B

Confirmed Case(s) – Voluntary Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Suspected: 1; Number Exposed: 50; Facility Type: Boarding Facility; 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, disease name, location and current status. Specific …

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Outbreak Alerts: April 18, 2026 – Strangles – Jefferson County, CO

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Equine Rhinitis Virus-B

Source: Attending Veterinarian Number Confirmed: 2; Facility Type: Boarding Facility;  Horse 1: Age: 4; Gender: Mare; Breed: Thoroughbred (TB); Onset of Clinical Signs: 4/10/2026; Clinical Signs: Nasal discharge; Confirmation Date: 4/17/2026; Horse Status: Affected And Alive; Vaccination Status: Status Unknown; Horse 2: PCR positive 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 …

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Outbreak Alerts: March 19, 2026 – Equine Infectious Anemia – MULTIPLE COUNTIES, Texas

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Source: Texas Animal Health Commission Milam County, TX Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Number Euthanized: 1; Comments: Quarantined 2/20/26. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity …

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Outbreak Alert: March 15, 2026 – Equine Influenza in Ellis County, KS

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Equine Rhinitis Virus-B

Confirmed Case(s) –  Voluntary Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Facility Type: Boarding Facility;  Horse 1: Age: 8; Gender: Mare; Breed: Quarter Horse (QH); Usage: Rodeo; Onset of Clinical Signs: 3/8/2026; Clinical Signs: Fever, lethargic, bilateral nasal discharge, anorexia, and cough; Confirmation Date: 3/13/2026; Horse Status: Recovering; Vaccination Status: Undervaccinated; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease …

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Outbreak Alerts: March 08, 2026 – Equine Herpesvirus- Respiratory – Maricopa County, AZ

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Equine Rhinitis Virus-B

Source: Arizona Department of Agriculture Exposed Horses – Official Quarantine Number Confirmed: 1; Number Exposed: 32; Facility Type: Private Facility; 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, disease name, location and current status. …

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Outbreak Alert: March 06, 2026 – Equine Influenza in Gallatin County, MT

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Equine Rhinitis Virus-B

Confirmed Case(s) – Voluntary Quarantine Source: Attending Veterinarian Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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, disease name, location and …

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Outbreak Alert: February 23, 2026 – Equine Influenza in Laramie County, WY

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Equine Rhinitis Virus-B

Confirmed Case(s) – No Quarantine Source: State Veterinarian Number Confirmed: 3; Facility Type: Farm; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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, disease name, location and current …

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Outbreak Alerts: February 23, 2026 – Equine Infectious Anemia – MULTIPLE COUNTIES, Texas

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Source: Texas Animal Health Commission Austin County, TX Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Number Euthanized: 1; Comments: Quarantined 1/27/26. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity …

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Outbreak Alerts: February 19, 2026 – Equine Infectious Anemia – Weld County, CO

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Equine Rhinitis Virus-B

Source: State Veterinarian’s Office Confirmed Case(s) – Official Quarantine Number Confirmed: 1; Number Exposed: 2; Facility Type: Private Facility;  Horse 1: Age: 7; Gender: Mare; Breed: Quarter Horse (QH); Usage: Racing; Clinical Signs: Tested due to exposure to initial Adams County, CO case in December.; Confirmation Date: 2/17/2026; Horse Status: Affected And Alive; For more information:  https://www.equinediseasecc.org/equine-infectious-anemia See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current …

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