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Equine Disease Communication Center

Outbreak Alerts: March 21, 2023 – Equine Herpesvirus- Neurologic in Pueblo County, CO

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Equine Rhinitis Virus-B

**There are 2 alerts for Pueblo County, CO. Scroll down to read 2nd alert** Confirmed Case(s) – Official Quarantine Source: State Veterinarian’s Office Number Confirmed: 1Number Exposed: 25Facility Type: Boarding Facility Age: 23Gender: GeldingBreed: Quarter Horse (QH)Usage: Pleasure Riding Onset of Clinical Signs: 3/14/2023Confirmation Date: 3/20/2023 Horse Status: Quarantined Comments: For more information go to go:https://www.equinediseasecc.org/equine-herpesvirus Confirmed Case(s) – Official Quarantine Source: …

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Outbreak Alerts: March 16, 2023 – Equine Infectious Anemia – Maricopa & Pinal Counties County, AZ

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Equine Rhinitis Virus-B

Source: Arizona Department of Agriculture Confirmed Case(s) – Official Quarantine Number Confirmed: 1Number Exposed: 28Facility Type: Private FacilityHorse Status: EuthanizedComments: On March 9th, samples were collected from an 8yo Quarter Horse and sent to the National Veterinary Services Laboratory which confirmed a positive test result for Equine Infectious Anemia (EIA) on March 15th, 2023. …

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Outbreak Alerts: March 14, 2023 – Equine Herpesvirus- Neurologic in Van Zandt County, TX

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Equine Rhinitis Virus-B

Confirmed Case(s) – Official Quarantine Source: Texas Animal Health Commission Number Confirmed: 1Breed: Quarter Horse (QH) Confirmation Date: 2/27/2023 Horse Status: QuarantinedComments: On February 27, 2023 the Texas Animal Health Commission (TAHC) officials confirmed Equine Herpesvirus Myeloencephalopathy (EHM) in a Quarter Horse on a Van Zandt County premises. The premises has been quarantined and will not be …

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Outbreak Alerts: March 14, 2023 – Equine Herpesvirus- Neurologic in Johnson County, TX

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Equine Rhinitis Virus-B

Confirmed Case(s) – Official Quarantine Source: Texas Animal Health Commission Number Confirmed: 1Breed: Quarter Horse (QH) Confirmation Date: 2/14/2023 Horse Status: QuarantinedComments: On February 14, 2023 the Texas Animal Health Commission (TAHC) officials confirmed Equine Herpesvirus Myeloencephalopathy (EHM) in a Quarter Horse on a Johnson County premises. The premises has been quarantined and will not be released …

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Outbreak Alerts: March 14, 2023 – Equine Infectious Anemia – Terry County, TX

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Equine Rhinitis Virus-B

Source: Texas Animal Health Commission Confirmed Case(s) – Official Quarantine Number Confirmed: 1Confirmation Date: 12/29/2022Horse Status: EuthanizedComments: On December 29, 2022 the Texas Animal Health Commission (TAHC) officials confirmed Equine Infectious Anemia (EIA) in one horse on a Terry County premises. The premises has been quarantined and will not be released until TAHC’s requirements are …

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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: 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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