Equine Herpesvirus- Neurologic Archives – Page 2 of 3

Outbreak Alerts: May 12, 2023 – Equine Herpesvirus- Neurologic in Umatilla County, OR

July 29, 2024May 16, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: Oregon Department of Agriculture Number Confirmed: 1Comments: A horse from Umatilla County, OR, recently tested positive for Equine Herpesvirus (EHV-1). The horse is recovering from the illness. EHV-1 is a reportable disease, and veterinarians are legally responsible for immediately reporting all suspected cases to the Oregon …

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Outbreak Alerts: May 10, 2023 – Equine Herpesvirus- Neurologic in Modoc County, CA

July 29, 2024May 11, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 6Facility Type: Private FacilityAge: 8Gender: MareBreed: Quarter Horse (QH)Usage: Barrel RacingOnset of Clinical Signs: 5/3/2023Clinical Signs: Acute hind limb ataxia, dragging hind feet, loss of urine bladder control.Confirmation Date: 5/8/2023Horse Status: Affected And AliveComments: An 8-year-old Quarter Horse mare in Modoc County displaying acute neurologic …

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Outbreak Alerts: April 28, 2023 – Equine Herpesvirus- Neurologic in Snohomish County, WA

April 18, 2024April 30, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: Washington State Department of Agriculture Number Confirmed: 1Number Exposed: 30Facility Type: StableAge: 20Gender: MareOnset of Clinical Signs: 4/19/2023Clinical Signs: Urinary incontinence, fecal incontinence, lack of anal/tail tone, Grade 3 ataxia, Mild facial nerve paresis (unilateral)Horse Status: RecoveringVaccination Status: VaccinatedComments: When the horse presented with neurologic signs, it was immediately placed in a quarantine barn …

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Outbreak Alerts: April 27, 2023 – Equine Herpesvirus- Neurologic in Snohomish County, WA

April 18, 2024April 27, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: State Veterinarian Office. Number Confirmed: 1Number Exposed: UnknownFacility Type: Veterinary HospitalComments: The horse, which was brought in for throat mass and went back to stable then returned for neurologic signs diagnosed as EHV-1, is under veterinary care. State is in contact with the stable and veterinary clinic. Quarantine …

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Outbreak Alerts: April 4, 2023 – Equine Herpesvirus- Neurologic in Monterey County, CA

April 18, 2024April 14, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 25Facility Type: Private FacilityAge: 25Gender: GeldingBreed: Quarter Horse (QH)Onset of Clinical Signs: 4/10/2023Clinical Signs: Fever of two days duration followed by acute severe neurological signs. Confirmation Date: 4/13/2023Horse Status: EuthanizedComments: A 25-year-old Quarter Horse gelding in Monterey County displaying fever followed by acute neurologic signs was …

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Outbreak Alerts: April 4, 2023 – Equine Herpesvirus- Neurologic in Riverside County, CA

April 18, 2024April 4, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 36Age: 18Gender: GeldingBreed: Warmblood (WB)Onset of Clinical Signs: 3/272023Clinical Signs: progressive hind end ataxia, inability to urinate, recumbentConfirmation Date: 4/4/2023Horse Status: EuthanizedComments: A 18-year-old Warmblood gelding in Riverside County displaying neurologic signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 …

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Outbreak Alerts – UPDATE: March 22, 2023 – Equine Herpesvirus- Neurologic in Riverside County, CA

April 18, 2024March 22, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 2Number Exposed: 600Age: 12Gender: MareBreed: Argentinian Polo HorseUsage: PoloOnset of Clinical Signs: 3/19/2023Clinical Signs: mild neurologicConfirmation Date: 3/21/2023Horse Status: Affected And AliveComments: A 12-year-old Argentinian polo horse mare displaying mild neurological signs has been confirmed positive for EHM secondary to EHV-1 (non-neuropathogenic strain). The mare was immediately …

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Outbreak Alerts: March 16, 2023 – Equine Herpesvirus- Neurologic in Riverside County, CA

April 18, 2024March 18, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 9Facility Type: Event CenterAge: 17Gender: MareBreed: Polo ponyUsage: PoloOnset of Clinical Signs: 3/11/2023Clinical Signs: Dragging pelvic limb 2 days prior to decreased appetite, ataxia, and reactivity on cervical spinal palpation, then found recumbent and unable to rise the following morning. Afebrile.Horse Status: EuthanizedVaccination Status: Status …

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Outbreak Alerts: March 14, 2023 – Equine Herpesvirus- Neurologic in Los Angeles County, CA

April 18, 2024March 18, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Suspected: UnknownNumber Exposed: 61Facility Type: Private Facility Age: 19Gender: GeldingBreed: SaddlebredOnset of Clinical Signs: 3/13/2023Clinical Signs: Acute ataxia and urine dribblingConfirmation Date: 3/14/2023Horse Status: EuthanizedComments: A 19-year-old Saddlebred gelding at a private boarding facility in Los Angeles County displaying acute neurological signs was confirmed positive …

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Outbreak Alerts: March 10, 2023 – Equine Herpesvirus- Neurologic in San Luis Obispo County, CA

April 18, 2024March 12, 2023 by Equine Disease Communication Center

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 26 Comments: No additional cases were confirmed, and the quarantine on this premises has been released.Previous Alerts: 2917 See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication CenterUpdates on current disease outbreaks are listed on our EDCC website as …

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