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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.



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Wellington County, ON
Outbreak Identifier: 5542
Alert ID: 2937
March 20, 2023
Confirmed Case(s) - Voluntary Quarantine

Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA)

Number Confirmed: 1
Number Exposed: Unknown
Facility Type: Boarding Facility
Age: 4; Gender: Mare; Breed: Thoroughbred (TB); Onset of Clinical Signs: 3/12/2023
Clinical Signs: The affected mare was recently purchased, arriving on the property March 4. The mare came from a farm from which a horse was confirmed with Strangles March 13. The present mare developed a fever followed by nasal discharge and swollen submandibular lymph nodes and tested positive for S. equi by PCR. Confirmation Date: 3/17/2023; Horse Status: Recovering.
Comments: A horse at a boarding facility in Wellington County has tested positive for Strangles. She has been moved to a vacant barn on a nearby property. The remaining horses are being monitored for clinical signs of S. equi infection. The facility owner is working with the attending veterinarian regarding biosecurity and movement restrictions. For more information go to: https://equinediseasecc.org/strangles