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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.



Hernando County, FL
Outbreak Identifier: 6631
Alert ID: 4104
November 08, 2024
Confirmed Case(s) - No Quarantine

FDACS Veterinary Medical Officer

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

Horse 1: 
Age: 2; Gender: Filly; Breed: Pony; Onset of Clinical Signs: 10/27/2024; Clinical Signs: Apprehensive, depression, incoordination, weakness in hind limbs, inability to stand.; Confirmation Date: 11/7/2024; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;

Comments: This is Florida's 11th confirmed case of 2024.;

Van Buren County, MI
Outbreak Identifier: 6629
Alert ID: 4101
November 06, 2024
Confirmed Case(s) - No Quarantine

Michigan Department of Agriculture and Rural Development

Number Confirmed: 1; 
Number Exposed: Unknown; 

Horse 1: 
Age: 29; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/21/2024; Clinical Signs: hindlimb weakness/ataxia, crossing hindlimbs over each other, difficulties chewing and controlling tongue; Confirmation Date: 11/1/2024; Horse Status: Recovered; Vaccination Status: Unvaccinated;

Marion County, FL
Outbreak Identifier: 6626
Alert ID: 4098
November 06, 2024
Confirmed Case(s) - No Quarantine

FDACS Veterinary Medical Officer

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

Horse 1: 
Age: 3; Gender: Mare; Breed: Paso Fino; Onset of Clinical Signs: 10/31/2024; Clinical Signs: Apprehensive, elevated temperature, head shaking, muscle twitching, incoordination, weakness in hind limbs, inability to stand.; Confirmation Date: 11/5/2024; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

Comments: This is Florida's 10th confirmed case of 2024;

Nowata County, OK
Outbreak Identifier: 6624
Alert ID: 4096
November 05, 2024
Confirmed Case(s) - No Quarantine

State Veterinarian

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

Horse 1: 
Age: 6; Gender: Mare; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 10/21/2024; Clinical Signs: 4/6 ataxic front & rear limbs, muscle fasciculations; Confirmation Date: 10/29/2024; Horse Status: Recovered; Vaccination Status: Unvaccinated;

Marion County, FL
Outbreak Identifier: 6623
Alert ID: 4095
November 04, 2024
Confirmed Case(s) - No Quarantine

FDACS Veterinary Medical Officer

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

Horse 1: 
Age: 1; Gender: Filly; Breed: Paso Fino; Onset of Clinical Signs: 10/29/2024; Clinical Signs: Head shaking, muscle twitching, incoordination, weakness of hind limbs, inability to stand.; Confirmation Date: 11/1/2024; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

Comments: This is Florida's 9th confirmed case of 2024;

Pickens County, SC
Outbreak Identifier: 6622
Alert ID: 4094
November 04, 2024
Confirmed Case(s) - No Quarantine

Clemson Livestock Poultry Health

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

Horse 1: 
Age: 4; Gender: Gelding; Breed: Tennessee Walking Horses; Usage: Pleasure Riding; Confirmation Date: 10/30/2024; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

Prowers County, CO
Outbreak Identifier: 6619
Alert ID: 4091
October 31, 2024
Confirmed Case(s) - No Quarantine

State Veterinarian

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

Horse 1: 
Age: 18; Gender: Stallion; Breed: Quarter Horse (QH); Usage: Horse Show; Onset of Clinical Signs: 10/17/2024; Clinical Signs: Weakness Ataxia; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

Marion County, FL
Outbreak Identifier: 6618
Alert ID: 4090
October 30, 2024
Confirmed Case(s) - No Quarantine

FDACS Veterinary Medical Officer

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

Horse 1: 
Age: 11; Gender: Gelding; Breed: Selle Faancais; Onset of Clinical Signs: 10/22/2024; Clinical Signs: Depression, Muscle twitching, Incoordination, Weakness in hind limbs, Listlessness.; Confirmation Date: 10/30/2024; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: This is Florida's 8th confirmed case of WNV for 2024;

Graves County, KY
Outbreak Identifier: 6613
Alert ID: 4086
October 29, 2024
Confirmed Case(s) - No Quarantine

Kentucky Department of Agriculture

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

Horse 1: 
Age: 7; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Onset of Clinical Signs: 10/20/2024; Clinical Signs: Stumbling with muscle fasciculations noted on muzzle, head and neck areas; Confirmation Date: 10/29/2024; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: This is Kentucky's 10th confirmed equine west nile case this year;

Tuscola County, MI
Outbreak Identifier: 6612
Alert ID: 4083
October 25, 2024
Confirmed Case(s) - No Quarantine

Michigan Department of Agriculture and Rural Development

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

Horse 1: 
Age: 12; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/15/2024; Clinical Signs: Severe ataxia and weakness, progressing to being recumbent with an ability to rise.; Confirmation Date: 10/24/2024; Horse Status: Euthanized; Vaccination Status: Undervaccinated;