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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.



Regional Municipality of Durham, ON
Outbreak Identifier: 6061
Alert ID: 3510
December 01, 2023
Confirmed Case(s) - Voluntary Quarantine

OMAFRA

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 3; Gender: Filly; Onset of Clinical Signs: 11/19/2023; Clinical Signs: This filly developed a persistent deep cough with significant mucopurulent nasal discharge and low grade fever (38.7 C). Several horses at the barn have had clinical signs consistent with a viral respiratory infection.; Confirmation Date: 11/28/2023; Horse Status: Recovering; 

Comments: The filly is recovering under veterinary care.;