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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.

Simcoe County, ON
Outbreak Identifier: 6304
Alert ID: 3781
July 03, 2024
Confirmed Case(s) - Voluntary Quarantine


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

Horse 1: 
Age: 5; Gender: Mare; Breed: Quarter Horse (QH); Clinical Signs: This mare is one of several horses displaying signs of respiratory disease in the barn which range from fever, nasal discharge, mildly swollen lymph nodes and occasional cough. Horses returned from a competition a few days before the index case (a gelding) was examined for nasal discharge and slightly enlarged lymph nodes. S. equi testing was negative in the index case and the influenza-positive mare. Within the next 48-72 hours several of the horses in the barn developed similar respiratory signs. Some of the horses are vaccinated for influenza and have more mild signs.; Confirmation Date: 6/26/2024; 

Comments: The facility manager is working with their veterinarian and has implemented voluntary animal movement restrictions and infection control procedures.;