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

Branch County, MI

Outbreak Identifier: 5176

Alert ID: 2552

April 19, 2022

Confirmed Case(s) - Official Quarantine

Source: Michigan Department of Agriculture and Rural Development

Number Confirmed: 1;
Number Exposed: 56;
Age: 14; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 4/11/2022;
Clinical Signs: Down with an inability to rise, ataxic; Confirmation Date: 4/14/2022; Horse Status: Euthanized; Vaccination Status: Vaccinated;
Notes: A horse on a property in Branch County has tested positive for EHM. The horse has been euthanized. The property is under official state quarantine. All equids are being monitored twice daily for fever and other clinical signs of herpesvirus. Enhanced biosecurity measures have been implemented. For more information about EHM go to: EHM factsheet. ;

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