Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here 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.

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Equine Herpesvirus- Neurologic

Berrien County, MI

Outbreak Identifier: 6131

Alert ID: 3582

February 13, 2024

Confirmed Case(s) - Official Quarantine

Source: Michigan Department of Agriculture and Rural Development

Number Confirmed: 1;
Number Exposed: 4;
Number Euthanized: 1;

Horse 1:
Age: 17; Gender: Mare; Breed: Pinto; Onset of Clinical Signs: 1/26/2024; Clinical Signs: Anorexia/off feed, lethargy, fever, blindness, ataxia, circling, leaning against stall, seizure, progressing to being down with an ability to get up.; Confirmation Date: 2/12/2024; Horse Status: Euthanized; Vaccination Status: Undervaccinated;

Comments: As of February 12, 2024, the remaining equids at the premises are undergoing twice daily rectal temperature checks and are being monitored daily for signs of disease and are under quarantine until they as a whole have either 1) had 14 consecutive days with no fever or clinical signs of disease and have each tested negative for EHV via PCR (nasal swab and buffy coat) or 2) have had 21 consecutive days with no fever or clinical signs of disease.;

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