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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.



Miami-Dade County, FL
Outbreak Identifier: 6790
Alert ID: 4285
March 28, 2025
Confirmed Case(s) - Official Quarantine

FDACS Veterinary Medical Officer

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

Horse 1: 
Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Confirmation Date: 3/26/2025; Horse Status: Deceased; Vaccination Status: Unvaccinated;

Comments: This is Florida's 1st confirmed case of rabies in livestock for 2025;;

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;

San Bernardino County, CA
Outbreak Identifier: 6782
Alert ID: 4276
March 25, 2025
Confirmed Case(s) - Official Quarantine

California Department of Food and Agriculture

Number Confirmed: 1; 
Number Exposed: 2; 

Horse 1: 
Age: 7; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing; 

Comments: A 7–year–old Quarter Horse gelding in San Bernardino County was confirmed positive for Equine Infectious Anemia (EIA). Two (2) potentially exposed horses on the home premises have been tested for EIA with results pending. The two potentially exposed horses will remain under quarantine until pending lab results are received and their sixty (60) day retest samples are completed as per CDFA and USDA program requirements. CDFA has been on site with continued monitoring of the situation, epidemiological tracing is ongoing.;

Gallatin County, MT
Outbreak Identifier: 6781
Alert ID: 4275
March 24, 2025
Confirmed Case(s) - Official Quarantine

Montana Department of Livestock

Number Confirmed: 1; 
Number Exposed: 17; 
Number Euthanized: 1; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 22; Gender: Mare; Breed: Appaloosa; Usage: Pleasure Riding; Onset of Clinical Signs: 3/10/2025; Clinical Signs: Urine retention, bladder atony, hindlimb ataxia; Confirmation Date: 3/14/2025; Horse Status: Euthanized; Vaccination Status: Vaccinated;

Comments: The premises is a boarding facility with no travel history in the two weeks prior to the presentation of clinical signs. The state veterinarian reports that the risk to the general horse population of Gallatin County is relatively low.;