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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 County, NY
Outbreak Identifier: 6789
Alert ID: 4284
March 28, 2025
Confirmed Case(s) - Official Quarantine

New York State Dept. Of Agriculture and Markets

Number Confirmed: 6; 
Number Suspected: 1; 
Number Exposed: 27; 
Facility Type: Boarding Facility;

Warren County, VA
Outbreak Identifier: 6788
Alert ID: 4283
March 27, 2025
Confirmed Case(s) - Voluntary Quarantine

Attending Veterinarian

Number Confirmed: 2; 
Number Suspected: Unknown; 
Number Exposed: 20; 
Facility Type: Private Facility; 

Horse 1: 
Age: Weanling; Gender: Filly; Breed: Mustang; Onset of Clinical Signs: 3/22/2025; Clinical Signs: Fever 103, Profuse bilateral nasal discharge, lymphadenopathy, lethargy, cough, inappetance; Confirmation Date: 3/26/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

Horse 2: 
Age: Weanling; Gender: Filly; Breed: Mustang; Onset of Clinical Signs: 3/22/2025; Clinical Signs: Fever, Lethargy, bilateral nasal discharge, cough, inappetance; Confirmation Date: 3/26/2025; Vaccination Status: Unvaccinated;

Comments: Two weanlings with a history of being shipped with a group of 20 weanlings from a feedlot in Arizona to sites in Pennsylvania, Michigan, Wisconsin and Virginia arrived in Virginia with fevers, profuse nasal discharge and lymphadenopathy. The two weanlings tested positive on PCR for Strep zooepidemicus, Strep equi equi and EHV 4 on nasal PCR. Weanlings are being quarantined voluntarily on private farm.; 
 

Volusia County, FL
Outbreak Identifier: 6787
Alert ID: 4281
March 26, 2025
Confirmed Case(s) - Official Quarantine

FDACS Veterinary Medical Officer

Number Confirmed: 1; 
Number Exposed: 11; 
Facility Type: Private Facility; 

Horse 1: 
Age: 14; Gender: Gelding; Breed: Warmblood (WB); Onset of Clinical Signs: 3/13/2025; Clinical Signs: Fever, nasal discharge and cough.; Confirmation Date: 3/21/2025; Horse Status: Affected And Alive; 

Comments: This is Florida's 11th confirmed case of Strangles for 2025.;

Dane County, WI
Outbreak Identifier: 6786
Alert ID: 4280
March 25, 2025
Exposed Horses - No Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Exposed: 2;

Rock County, WI
Outbreak Identifier: 6785
Alert ID: 4279
March 25, 2025
Suspected Case - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Exposed: Unknown;

Rock County, WI
Outbreak Identifier: 6784
Alert ID: 4278
March 25, 2025
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 12; 

Horse 1: 
Age: Yearling; Gender: Colt; Breed: Mustang; Onset of Clinical Signs: 3/15/2025; Clinical Signs: Purulent nasal discharge, fever; Confirmation Date: 3/21/2025; Horse Status: Affected And Alive; 

Horse 2: 
Age: Weanling; Onset of Clinical Signs: 2/17/2025; Clinical Signs: Nasal discharge; Horse Status: Affected And Alive;

Walworth County, WI
Outbreak Identifier: 6783
Alert ID: 4277
March 25, 2025
Exposed Horses - No Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Exposed: 5;

Shawano County, WI
Outbreak Identifier: 6776
Alert ID: 4269
March 20, 2025
Confirmed Case(s) - No Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 

Horse 1: 
Age: 15; Gender: Mare; Breed: Quarter Horse (QH); Confirmation Date: 3/18/2025; Horse Status: Affected And Alive;

Lapeer County, MI
Outbreak Identifier: 6770
Alert ID: 4262
March 14, 2025
Confirmed Case(s) - Voluntary Quarantine

Michigan Department of Agriculture and Rural Development

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

Horse 1: 
Age: Suckling Foal; Gender: Colt; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/10/2025; Clinical Signs: Fever, lethargy; Confirmation Date: 3/12/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Pierce County, WI
Outbreak Identifier: 6769
Alert ID: 4261
March 13, 2025
Confirmed Case(s) - No Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Suspected: 4; 

Horse 1: 
Age: 3; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 1/29/2025; Clinical Signs: Fever; Confirmation Date: 2/5/2025; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;