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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.



Erie, NY
Outbreak Identifier: 6789
Alert ID: 4388
May 31, 2025
Quarantine Released

Attending Veterinarian

Number Confirmed: 9; 
Number Suspected: 1; 
Number Exposed: 30; 
Facility Type: Boarding Facility; 
Previous Alerts: 4284

For more information regarding strangles, visit: https://www.equinediseasecc.org/strangles

Saratoga County, NY
Outbreak Identifier: 6879
Alert ID: 4384
May 31, 2025
Confirmed Case(s) - Official Quarantine

State Animal Health Official

Number Confirmed: 1; 
Number Exposed: 43; 
Facility Type: Racetrack; 

Horse 1: 
Age: 2; Gender: Colt; Breed: Thoroughbred (TB); Horse Status: Affected And Alive; 

Comments: The New York Department of Ag & Markets, The New York Racing Association, Inc. (NYRA) and the New York State Gaming Commission (NYSGC) have placed Barn 85 at Saratoga Race Course under a 14-day official quarantine due to a positive case of strangles in that barn. Barn 85 contains horses trained by Jeremiah Englehart and Jorge Abreu. The index case, a 2-year-old Thoroughbred colt, trained by Englehart, was shipped to Rood & Riddle Equine Hospital on Wednesday, May 28, 2025 for evaluation and treatment of a respiratory infection. On Thursday, May 29, 2025 the positive test results were reported. The colt began treatment immediately at Rood & Riddle and transported from the hospital to a private layup facility. Following official notification of the positive case by the NYS Department of Agriculture on Friday morning, NYRA and the NYSGC implemented standard infectious disease protocols including restricting access to the horses in the quarantined barn, establishing a 24-hour security watch, mandating regular temperature checks for the horses in that barn and enacting biosecurity measures for all individuals requiring access to Barn 85. Overseen by Dr. Sarah Hinchliffe, the director of NYRA's veterinary department, in consultation with the NYSGC, and the NY Dept of Ag & Markets, Barn 85 quarantine is effective immediately. Abreu has horses in both Barn 85 and Barn 86, and only the horses in Barn 85 are quarantined. The Abreu horses located in Barn 86 can train and race with the general population. The horses under quarantine will not be permitted to enter races or train among the general horse population. Afebrile/asymptomatic horses stabled in Barn 85 will have isolated training hours at the Oklahoma Training Track following the close of training for the general horse population at 10 a.m. For information about strangles visit: https://www.equinediseasecc.org/strangles;

Clearwater County, AB
Outbreak Identifier: 6878
Alert ID: 4383
May 30, 2025
Confirmed Case(s) - Official Quarantine

Canadian Food Inspection Agency

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: On May 28, 2025, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in Clearwater County, Alberta. The owner requested an accredited veterinarian test the horse for EIA because it was exhibiting clinical signs compatible with the disease. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horse and any on-premises contact animals. Initial reports indicate there are several other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

Rotavirus
Région de Gatineau, QC
Outbreak Identifier: 6877
Alert ID: 4382
May 29, 2025
Confirmed Case(s) - No Quarantine

MAPAQ

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

Horse 1: 
Age: Suckling Foal; Gender: Colt; Clinical Signs: diarrhea, hepatitis; Horse Status: Recovering; 

Comments: 2 weeks old;

Hall County, GA
Outbreak Identifier: 6876
Alert ID: 4381
May 29, 2025
Confirmed Case(s) - Voluntary Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Comments: N/A;

Eaton County, MI
Outbreak Identifier: 6875
Alert ID: 4380
May 27, 2025
Confirmed Case(s) - Voluntary Quarantine

Michigan Department of Agriculture and Rural Development

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: 6; Gender: Gelding; Breed: Mustang; Onset of Clinical Signs: 5/12/2025; Clinical Signs: nasal discharge, swollen submandibular lymph nodes; Confirmation Date: 5/22/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

Niagara County, NY
Outbreak Identifier: 6874
Alert ID: 4379
May 27, 2025
Confirmed Case(s) - Official Quarantine

Attending Veterinarian and New York State Dept. of Agriculture and Markets

Number Confirmed: 1; 
Number Suspected: 2; 
Number Exposed: 15; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 26; Gender: Gelding; Breed: Arabian; Onset of Clinical Signs: 5/21/2025; Clinical Signs: Fever, inappetance; Confirmation Date: 5/24/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Cumberland County, PA
Outbreak Identifier: 6873
Alert ID: 4378
May 23, 2025
Confirmed Case(s) - Voluntary Quarantine

Attending veterinarian

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

Horse 1: 
Age: 20; Gender: Mare; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 5/18/2025; Clinical Signs: The mare presented on the farm for fever and colic signs which progressed to liquid diarrhea. She was subsequently referred to a hospital in Virginia where she is responding in a positive fashion to medical management.; Confirmation Date: 5/22/2025; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

Montgomery County, PA
Outbreak Identifier: 6872
Alert ID: 4377
May 23, 2025
Confirmed Case(s) - Voluntary Quarantine

Attending veterinarian

Number Confirmed: 1; 
Number Exposed: 39; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 4; Gender: Gelding; Breed: Thoroughbred (TB); Onset of Clinical Signs: 5/19/2025; Clinical Signs: Fever, nasal discharge; Confirmation Date: 5/22/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Marion County, FL
Outbreak Identifier: 6871
Alert ID: 4376
May 23, 2025
Suspected Case - Official Quarantine

FDACS Veterinary Medical Officer

Number Suspected: 3; 
Number Exposed: 50; 
Facility Type: Boarding Facility; 
Comments: This is Florida's 21st case of Strangles for 2025;