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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: February 24, 2023 – Equine Herpesvirus- Neurologic in Maricopa County, AZ

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Equine Rhinitis Virus-B

Confirmed Case(s) – Official Quarantine Source: Arizona Department of Agriculture Number Confirmed: 1Number Exposed: 36Facility Type: RacetrackComments: The index case is a single 14 year old Thoroughbred gelding that developed clinical signs of illness (hindlimb ataxia, weakness, difficulty rising / maintaining a standing posture) on 2-14-2023 with positive test results reported out on 2-18-2023 …

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Outbreak Alerts: February 22, 2023 – Equine Infectious Anemia – Oklahoma County, OK

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Equine Rhinitis Virus-B

Source: State Veterinarian Office Confirmed Case(s) – Official Quarantine Number Confirmed: 1Number Exposed: 6Facility Type: Training FacilityAge: 4Gender: StallionBreed: Quarter Horse (QH)Usage: RacingOnset of Clinical Signs: 2/11/2023Clinical Signs: AsymptomaticConfirmation Date: 2/20/2023Horse Status: QuarantinedComments: Exposed horses have undergone initial testing and all are negative. The positive horse has been isolated and quarantined. Epidemiologic Investigation is ongoing at this time. For more information go …

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Outbreak Alerts: February 10, 2023 – Equine Infectious Anemia – Midland County, TX

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 7 Breed: Quarter Horse (QH)Comments: Texas Animal Health Commission (TAHC) officials confirmed equine infectious anemia (EIA) in seven Quarter Horses on a single Midland County premises. These are the first confirmed cases of EIA in Texas this year. The horses were confirmed …

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Outbreak Alerts: February 01, 2023 – Equine Herpesvirus- Neurologic in Flathead County, MT

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Equine Rhinitis Virus-B

Confirmed Case(s) – Official Quarantine Source: Montana Department of Livestock Number Confirmed: 5Clinical Signs: Neurologic signsComments: Following multiple confirmed cases of equine herpesvirus myeloencephalopathy (EHM) in Flathead County, the Montana Department of Livestock is recommending that horse owners and event coordinators in the Flathead Valley limit travel and cancel events that bring horses …

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Outbreak Alerts: January 05, 2023 – Strangles – Douglas County, CO

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Equine Rhinitis Virus-B

Source: Attending Veterinarian Confirmed Case: Voluntary Quarantine Number Confirmed: 3Number Suspected: 6Number Exposed: UnknownFacility Type: Private FacilityAge: 8; Gender: Mare; Breed: Pony; Usage: Pleasure Riding; Onset of Clinical Signs: 1/2/2023;Clinical Signs: depressed, colic signs, weight loss. Tender to palpation in throat but no submandibular swelling, or abscessation detected. No fever detected. Very mild nasal discharge; Confirmation Date: 1/5/2023; Horse Status: Quarantined; Vaccination Status: Unvaccinated; Age: 9; Gender: Gelding; Breed: Pony; Usage: Pleasure Riding; Onset of Clinical Signs: 1/4/2023;Clinical Signs: Submandibular …

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Outbreak Alerts: December 17, 2022 – Botulism – CO, LA, NM, and TX

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Equine Rhinitis Virus-B

Source: LSU Veterinary Teaching Hospital and LA Department of Agriculture Confirmed Case: Outbreak Update Number Suspected: 30 Comments: The U.S. Food and Drug Administration, in cooperation with state departments of agriculture in Colorado, Louisiana, New Mexico, and Texas, is investigating cases of illness and death in horses. The FDA is cautioning …

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Outbreak Alerts: November 24, 2022 – Strangles – Douglas County, CO

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Equine Rhinitis Virus-B

Source: Attending Veterinarian Confirmed Case: Voluntary Quarantine Number Confirmed: 1Number Suspected: UnknownNumber Exposed: UnknownFacility Type: Boarding Facility Comments: A horse was confirmed positive for Strangles (Streptococcus equi spp equi) in Douglas County, CO.  For more information, go to: Strangles factsheet. See past published Outbreak Alerts: www.coloradohorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are …

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Outbreak Alerts: October 25, 2022 – Equine Infectious Anemia – Bexar County, TX

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 1 Breed: Quarter Horse (QH) Horse Status: Euthanized Comments: Texas Animal Health Commission (TAHC) officials confirmed equine infectious anemia (EIA) in a Quarter Horse on a Bexar County premises. The premises has been quarantined and will not be released until …

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Outbreak Alerts: October 25, 2022 – Equine Infectious Anemia – Jasper County, TX

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 1 Breed: Quarter Horse (QH) Horse Status: Euthanized Comments: Notes: Texas Animal Health Commission (TAHC) officials confirmed equine infectious anemia (EIA) in a Quarter Horse on a Jasper County premises. The premises has been quarantined and will not be released until TAHC’s …

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Outbreak Alerts: October 25, 2022 – Equine Infectious Anemia – Wilson County, TX

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 1 Facility Type: Private Facility Number Confirmed: 1 Breed: Quarter Horse (QH) Horse Status: Euthanized Comments: Texas Animal Health Commission (TAHC) officials confirmed equine infectious anemia (EIA) in a Quarter Horse on a Wilson County premise. The premises has been quarantined and will …

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