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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: April 10, 2026 – Equine Infectious Anemia in Fresno County, CA

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Equine Herpesvirus- Neurologic

Number Confirmed: 1; Number Exposed: 3;  Horse 1: Age: 4; Gender: Gelding; Breed: Quarter Horse (QH); Horse Status: Euthanized;  Comments: A 4–year–old Appendix Quarter Horse gelding in Fresno County was confirmed positive for Equine Infectious Anemia (EIA). The horse was euthanized on March 27, 2026, due to worsening clinical signs. Three (3) potentially exposed horses on the home premises have initially tested … Read More

Outbreak Alerts: April 10, 2026 – Equine Infectious Anemia in San Joaquin County, CA

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Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1;  Horse 1: Age: 3; Gender: Gelding; Breed: Quarter Horse (QH); Confirmation Date: 4/9/2026;  Comments: A 3–year–old Quarter Horse gelding in San Joaquin County was confirmed positive for Equine Infectious Anemia (EIA). Epidemiological tracing determined that this horse had recently trained on the same premises as … Read More

Outbreak Alerts: April 2, 2026 – Equine Influenza in Yamhill County, OR

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Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: State Department of Agriculture Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: 36; Facility Type: Boarding Facility; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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 they occur and will include the … Read More

Outbreak Alerts: March 31, 2026 – Equine Influenza in Lake County, OR

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Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: State Department of Agriculture Number Confirmed: 1; Number Suspected: 2; Number Exposed: 40; Facility Type: Training Facility; For more information about Equine Influenza, go to https://www.equinediseasecc.org/equine-influenza 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 they occur and will include the … Read More

Outbreak Alerts – March 23, 2026 – Equine Herpesvirus- Neurologic in Santa Barbara County, CA

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Equine Herpesvirus- Neurologic

Source: California Department of Food and Agriculture Confirmed Case(s) – Quarantine Released Number Confirmed: 1; Number Exposed: 3; Number Euthanized: 1; Comments: No additional case were confirmed during the quarantine monitoring period. The quarantine period has been fully completed and is officially released.; Previous Alerts: 4898 For more information, go to https://www.equinediseasecc.org/equine-herpesvirus See past published Outbreak Alerts: https://nwhorsesource.com/category/news/alerts Equine Disease Communication … Read More

Outbreak Alerts: March 20, 2026 – Equine Infectious Anemia in Multiple Counties in CA

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Equine Herpesvirus- Neurologic

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture   Merced County, CA Number Confirmed: 1; Number Exposed: 1; Comments: The one (1) potentially exposed horses on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; Previous Alerts: 4842   Stanislaus County, CA Number Confirmed: 2; Number Exposed: 25; Horse … Read More

Outbreak Alerts: March 10, 2026 Strangles in Linn County, OR

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Equine Herpesvirus- Neurologic

Source: State Department of Agriculture Confirmed Case(s) – Official Quarantine Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: 4; For more information about Strangles, go to https://www.equinediseasecc.org/strangles 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 they occur and will include the date listed, disease … Read More

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

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Equine Herpesvirus- Neurologic

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: https://nwhorsesource.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, … Read More

Outbreak Alerts: March 09, 2026 Strangles in Harney County, OR

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Equine Herpesvirus- Neurologic

Source: State Department of Agriculture Confirmed Case(s) – Official Quarantine Number Confirmed: 9; Number Suspected: 3; Number Exposed: Unknown; Facility Type: Farm; Previous Alerts: 4906 Comments: There are 12 horses considered affected and alive.  For more information about Strangles, go to https://www.equinediseasecc.org/strangles 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 … Read More

Outbreak Alerts – March 02, 2026 – Equine Herpesvirus- Neurologic in Santa Barbara County, CA

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Equine Herpesvirus- Neurologic

Source: California Department of Food and Agriculture Confirmed Case(s) – Official Quarantine Number Confirmed: 1; Number Exposed: 3; Number Euthanized: 1;  Horse 1: Age: 16; Gender: Gelding; Breed: Tennessee Walking Horses; Clinical Signs: ataxia, trouble urinating, recumbent; Confirmation Date: 3/2/2026; Horse Status: Euthanized;  Comments: A 16-year-old Tennessee Walker gelding from Santa Barbara County displaying neurologic signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 (EHV-1). The … Read More

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