Disease Alerts

Number Confirmed: 1; 
Number Exposed: Unknown; 
Number Euthanized: 1; 

Horse 1: 
Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/24/2024; Clinical Signs: Recumbent; Confirmation Date: 10/9/2024; Horse Status: Euthanized; Vaccination Status: Status Unknown;

Number Confirmed: 1; 
Number Exposed: Unknown; 
Number Euthanized: 1; 

Horse 1: 
Age: 2; Gender: Filly; Breed: Standardbred; Onset of Clinical Signs: 9/29/2024; Clinical Signs: Found in lateral recumbency, no bladder or bowel control; Confirmation Date: 10/8/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: 5; Gender: Mare; Breed: Miniature Horse; Onset of Clinical Signs: 9/28/2024; Clinical Signs: hypermetric, seeking dark areas; Confirmation Date: 10/7/2024; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: Another unvaccinated 5-year-old Miniature Horse mare at the premises developed neurologic signs around the same time, including being down with an inability to rise, and subsequently died. She was not tested.;

Number Confirmed: 1; 
Number Exposed: Unknown; 
Number Euthanized: 1; 

Horse 1: 
Age: 2; Gender: Filly; Breed: Standardbred; Onset of Clinical Signs: 9/25/2024; Clinical Signs: acting dull, lateral recumbency, seizures; Confirmation Date: 10/8/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

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

Horse 1: 
Age: 2; Gender: Filly; Breed: Belgian; Onset of Clinical Signs: 10/3/2024; Clinical Signs: Owner noted acute onset of inappetance and lethargy. Vet came to exam and noted high fever (105.5) and mild ataxia.; Horse Status: Unknown; Vaccination Status: Unvaccinated;

Comments: Owner reports having another horse, a yearling dying a week before, showing similar clinical signs.;

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Gender: Mare; Breed: Pony; Onset of Clinical Signs: 9/15/2024; Clinical Signs: This pony mare started showing acute neurologic signs on September 15 (circling, head pressing, falling against the fence, stumbling, weakness, hypermetria). She was administered supportive treatment but was euthanized two days later as her clinical signs worsened.; Confirmation Date: 10/2/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

Comments: This is the 20th case of equine EEE in Ontario this year. To see past and present EEE cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal. To see past and present EEE cases in Canada, go to: https://cahss.ca/cahss-networks/equine and enter the equine dashboard.;

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: Yearling; Gender: Filly; Breed: Draft; Onset of Clinical Signs: 9/21/2024; Clinical Signs: This filly developed acute neurologic signs (obtunded, ataxic) on September 21. She died later that day.; Confirmation Date: 10/7/2024; Horse Status: Deceased; Vaccination Status: Unvaccinated;

Comments: This is the 21st case of equine EEE in Ontario this year. To see past and present EEE cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal. To see past and present EEE cases in Canada, go to: https://cahss.ca/cahss-networks/equine and enter the equine dashboard.;

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: 15; Breed: Quarter Horse Cross; Onset of Clinical Signs: 9/22/2024; Clinical Signs: This horse developed acute neurologic signs (severe ataxia, muscle tremors, reduced PLR, obtunded) on September 22. She was euthanized later that evening due to progressive neurologic signs.; Confirmation Date: 10/7/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

Comments: This is the 22nd case of equine EEE in Ontario this year. To see past and present EEE cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal. To see past and present EEE cases in Canada, go to: https://cahss.ca/cahss-networks/equine and enter the equine dashboard.;

Number Confirmed: 1; 
Number Exposed: 10; 

Horse 1: 
Age: 5; Gender: Mare; Breed: Standardbred; Onset of Clinical Signs: 10/1/2024; Clinical Signs: muscle fasciculations, fever; Confirmation Date: 10/4/2024; Vaccination Status: Unvaccinated;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 

Horse 1: 
Gender: Mare; Onset of Clinical Signs: 8/8/2024; Confirmation Date: 8/16/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated