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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 Halton, ON
Outbreak Identifier: 6051
Alert ID: 3500
November 22, 2023
Confirmed Case(s) - Voluntary Quarantine

OMAFRA

Number Confirmed: 1; 
Number Exposed: 2; 
Horse 1: 
Age: 3; Gender: Filly; Breed: Pony; Clinical Signs: This pony filly was purchased from an auction and was noticed to have mucopurulent nasal discharge. Fortunately, she went into a quarantine area immediately upon arrival at the farm along with two other ponies.; Confirmation Date: 11/14/2023; 
Comments: The facility owner has implemented voluntary movement restrictions as well as instituted biosecurity measures under the supervision of the attending veterinarian.;