California Department of Food and Agriculture

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 42Comments: The positive horse has had two (2) consecutive negative tests seven (7) days apart. No additional cases were confirmed during the quarantine monitoring period. The quarantine has been released. See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine …

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Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 5Number Exposed: 28Facility Type: Private FacilityAge: 25Gender: GeldingBreed: Quarter Horse (QH)Clinical Signs: Fever, mild neurological signsConfirmation Date: 6/1/2023Horse Status: Affected And AliveComments: A 25-year-old Quarter Horse gelding in Stanislaus County displaying mild neurologic signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 …

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Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 42Facility Type: Boarding Facility Age: 19Gender: MareBreed: PaintUsage: Pleasure RidingOnset of Clinical Signs: 5/19/2023Clinical Signs: Ataxia, urine dribbling and bladder atony.Confirmation Date: 5/26/2023Horse Status: Affected And AliveVaccination Status: VaccinatedComments: May 30, 2023: A 19-year-old Paint mare in San Luis Obispo county displaying neurological signs was confirmed positive for …

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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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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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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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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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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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