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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.



Herkimer County, NY
Outbreak Identifier: 6451
Alert ID: 3928
September 07, 2024
Confirmed Case(s) - No Quarantine

State Animal Health Official

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

Horse 1: 
Age: 16; Gender: Gelding; Breed: Percheron; Clinical Signs: Horse was recumbent on 9/2. Despite veterinary exam and treatment, horse remained mostly recumbent, withnhypersalivating, dysphagia. He died 2 days later.; Horse Status: Deceased; Vaccination Status: Unvaccinated;

Tooele County, UT
Outbreak Identifier: 6450
Alert ID: 3927
September 06, 2024
Confirmed Case(s) - No Quarantine

Utah Department of Agriculture and Food

Number Confirmed: 1; 
Number Exposed: 5; 
Number Euthanized: 1; 
Facility Type: Private Facility;

Marquette County, WI
Outbreak Identifier: 6449
Alert ID: 3926
September 06, 2024
Confirmed Case(s) - No Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

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

Horse 1: 
Age: 4; Gender: Stallion; Breed: Standardbred; Onset of Clinical Signs: 9/2/2024; Clinical Signs: febrile, moderately ataxic in the hindlimbs, muscle fasciculation; Vaccination Status: Unvaccinated;

Montérégie (MRC Haut-Richelieu), QC
Outbreak Identifier: 6448
Alert ID: 3925
September 06, 2024
Confirmed Case(s) - No Quarantine

MAPAQ

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

Horse 1: 
Age: 5; Gender: Mare; Breed: Miniature Horse; Onset of Clinical Signs: 8/21/2024; Clinical Signs: neurologic signs; Confirmation Date: 8/30/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

MRC Maria-Chapdelaine (Saguenay-Lac-St-Jean), QC
Outbreak Identifier: 6447
Alert ID: 3924
September 06, 2024
Confirmed Case(s) - No Quarantine

MAPAQ

Number Confirmed: 1; 
Number Suspected: 2; 
Number Exposed: Unknown; 

Horse 1: 
Age: 11; Onset of Clinical Signs: 8/16/2024; Clinical Signs: fever, muscle twitching, lack of coordination, weekness of the hind limbs, heat tilting; Confirmation Date: 8/27/2024; Horse Status: Recovering; Vaccination Status: Unvaccinated;

LaGrange County, IN
Outbreak Identifier: 6446
Alert ID: 3923
September 06, 2024
Confirmed Case(s) - No Quarantine

Indiana State Board of Animal Health

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

Horse 1: 
Age: 1; Gender: Colt; Breed: Standardbred; Onset of Clinical Signs: 8/28/2024; Clinical Signs: Lateral recumbency with convulsions. Horse was still down a couple of days later.; Confirmation Date: 9/4/2024; Horse Status: Unknown; Vaccination Status: Unvaccinated;

Cass County, MI
Outbreak Identifier: 6445
Alert ID: 3922
September 06, 2024
Confirmed Case(s) - No Quarantine

Michigan Department of Agriculture and Rural Development

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: 6; Gender: Mare; Breed: Pony; Onset of Clinical Signs: 8/9/2024; Clinical Signs: staggering, muscle twitching; Confirmation Date: 9/6/2024; Horse Status: Recovered; Vaccination Status: Unvaccinated;

Elkhart County, IN
Outbreak Identifier: 6444
Alert ID: 3921
September 06, 2024
Confirmed Case(s) - No Quarantine

Indiana State Board of Animal Health

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

Horse 1: 
Age: 3; Gender: Mare; Breed: Standardbred; Onset of Clinical Signs: 8/28/2024; Clinical Signs: Stumbling on front feet. Muscle fasciculations of lip and shoulders.; Confirmation Date: 9/4/2024; Horse Status: Unknown; Vaccination Status: Unvaccinated;

Somerset County, ME
Outbreak Identifier: 6443
Alert ID: 3920
September 06, 2024
Confirmed Case(s) - No Quarantine

Maine Department of Agriculture, Conservation & Forestry

Number Confirmed: 1; 
Number Euthanized: 1; 

Horse 1: 
Onset of Clinical Signs: 8/27/2024; Clinical Signs: Acute neurologic signs that rapidly progressed to recumbancy. Due to declining condition and poor prognosis for survival, horse was humanely euthanized.; Confirmation Date: 9/4/2024; Horse Status: Euthanized; Vaccination Status: Undervaccinated;

Comments: Maine horse owners are reminded to ensure all equines remain up to date on EEE, WNV and rabies vaccination. Please work with your veterinarian to schedule vaccination or booster if needed. Assistance with testing for EEE/WNV may be available; call your veterinarian with any concerns about neurologic equines. https://equinediseasecc.org/news/article/Vaccinations-Important-for-West-Nile-and-Eastern-Equine-Encephalitis;

Wellington County, ON
Outbreak Identifier: 6442
Alert ID: 3919
September 06, 2024
Confirmed Case(s) - Voluntary Quarantine

OMAFA

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

Horse 1: 
Age: 15; Gender: Mare; Breed: Standardbred; Onset of Clinical Signs: 8/29/2024; Clinical Signs: This mare developed a fever and swelling in the throat region. Swab was positive for S. equi on PCR.; Horse Status: Recovering; 

Comments: To see past and present facilities affected by Strangles in Ontario go to: https://www.oahn.ca/resources/ontario-equine-disease-alerts/ and enter the disease surveillance portal.;