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Equine Herpesvirus Myeloencephalopathy (EHM) Outbreak
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Disease Alerts

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.



Laurentides Sud, QC
Outbreak Identifier: 6023
Alert ID: 3467
November 03, 2023
Confirmed Case(s) - No Quarantine

MAPAQ

Number Confirmed: 1; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Facility Type: Stable; 

Horse 1: 
Age: 5; Gender: Mare; Onset of Clinical Signs: 11/8/2023; Clinical Signs: In the morning, depression, respiratory distress, neurological signs (pushes to the wall), icteric mucous membranes, no fever. In the evening, decubitus, unable to get up.; Confirmation Date: 11/2/2023; Horse Status: Euthanized; Vaccination Status: Undervaccinated;