Disease Alerts

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 
Comments: Horses shipped in to owner and one became sick 2 days after arrival. Never mixed with other horses. Under vet care.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: 15; 
Facility Type: Stable;

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

Horse 1: 
Age: Yearling; Gender: Colt; Breed: Hanoverian; Onset of Clinical Signs: 1/5/2025; Clinical Signs: Elevated temperature, muscle twitching; Confirmation Date: 1/16/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: This is Florida's 1 confirmed case of 2025; This horse has a confection with EEE and is the same horse listed in alert 4187.

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

Horse 1: 
Age: Yearling; Gender: Colt; Breed: Hanoverian; Onset of Clinical Signs: 1/5/2025; Clinical Signs: Elevated Temperature, Muscle Twitching; Confirmation Date: 1/16/2024; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: This is Florida's 2nd confirmed case of EEE for 2025; This horse has a confection with WNV and is the same horse listed in alert 4188.

Number Confirmed: 1; 
Number Exposed: 40; 

Horse 1: 
Age: 15; Gender: Mare; Breed: Thoroughbred (TB); Onset of Clinical Signs: 1/14/2025; Clinical Signs: ataxia, recumbency; Confirmation Date: 1/16/2025; Horse Status: Affected And Alive; 

Comments: A 15-year-old Thoroughbred mare from San Luis Obispo County displaying neurologic signs was confirmed positive for Equine Herpesvirus Myeloencephalopathy (EHM) secondary to Equine Herpesvirus-1 (EHV-1). The mare is alive and under veterinary care at an off-site veterinary hospital. Forty (40) potentially exposed horses at the home premise in San Luis Obispo County were quarantined on January 17th with enhanced biosecurity measures implemented. There had been no recent history of travel on or off these premises by the clinical horse and no other horses on the home premises currently have any clinical symptoms. CDFA will continue to actively monitor the situation.;

Number Confirmed: 3; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 

Horse 1: 
Age: 25; Gender: Mare; Breed: Quarter Horse (QH); Clinical Signs: nasal discharge, swollen lymph nodes; Confirmation Date: 1/14/2025; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: Two other cases from this premises reported previously (alert 3985, 4176). This is a third reported case. Horse tested January 9, 2025. Signs first reported July of 2024.; 
Previous Alerts: 4176, 4122, 3985

Number Confirmed: 3; 
Number Suspected: 1; 
Number Exposed: 8; 
Facility Type: Private Facility; 

Horse 1: 
Clinical Signs: Three senior horses were noted to be mildly off feed the week of January 6 . One of the horses developed an abscess under the jaw on Jan 12. All three horses have tested positive for S. equi by PCR. All affected horses have been isolated in a barn on the property.; 

Comments: The facility owner is working with their veterinarian on voluntary animal movement restrictions and biosecurity. To see past and present Strangles cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal.;

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

Horse 1: 
Age: 10; Gender: Gelding; Clinical Signs: This horse and another were purchased from a facility in Simcoe County. They were appropriately isolated upon arrival at the boarding facility. This horse was noted to have purulent nasal discharge, a sample of which was PCR positive for S. equi.; 

Comments: The facility owner is working with their veterinarian on voluntary animal movement restrictions and biosecurity. To see past and present Strangles cases in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal.;

Number Confirmed: 1; 
Number Exposed: 4; 
Facility Type: Private Facility; 

Horse 1: 
Breed: Donkey; Onset of Clinical Signs: 1/13/2025; Confirmation Date: 1/16/2025; Horse Status: Deceased; Vaccination Status: Status Unknown;

Comments: This is Florida's second confirmed case of Strangles in 2025;

Number Confirmed: 1; 
Facility Type: Private Facility; 
Comments: Self quarantine and under private vet care;