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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.



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The color range is based off of the selected End Date. If the End Date doesn't have a value it will use Today's Date.

Strangles
Douglas County, KS
Outbreak Identifier: 7672
Alert ID: 5247
September 17, 2026
Exposed Horses - Voluntary Quarantine

Attending veterinarian

Number Confirmed: 2; 
Number Suspected: 2; 
Number Exposed: Unknown; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 26; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Companion; Onset of Clinical Signs: 8/29/2026; Clinical Signs: Fever, nasal discharge, swollen lymph nodes; Confirmation Date: 9/3/2026; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;
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Strangles
Pierce County, WI
Outbreak Identifier: 7669
Alert ID: 5244
September 16, 2026
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 4; 
Number Suspected: 2; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 30; Gender: Gelding; Breed: Tennessee Walking Horses; Clinical Signs: Fever, nasal discharge, abscesses; Confirmation Date: 9/14/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Horse 2: 
Age: 14; Gender: Gelding; Breed: Quarter Horse (QH); Clinical Signs: Fever, nasal discharge, abscesses; Confirmation Date: 9/14/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Horse 3: 
Age: 7; Gender: Gelding; Clinical Signs: nasal discharge, abscesses; Confirmation Date: 9/9/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Horse 4: 
Age: 16; Gender: Gelding; Breed: Quarter Horse (QH); Clinical Signs: nasal discharge; Horse Status: Recovering; Vaccination Status: Unvaccinated;
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Strangles
Sarasota County, FL
Outbreak Identifier: 7657
Alert ID: 5232
September 14, 2026
Confirmed Case(s) - Official Quarantine

Florida Department of Agriculture and Consumer Services

Number Confirmed: 1; 
Number Exposed: 8; 
Comments: This is the 24th confirmed case of strangles for Florida in 2026.;
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Strangles
Racine County, WI
Outbreak Identifier: 7652
Alert ID: 5227
September 14, 2026
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Exposed: 2; 

Horse 1: 
Age: 8; Gender: Mare; Breed: Paso Fino; Clinical Signs: Lymphadenopathy, submandibular lymph node abscess; Confirmation Date: 9/3/2026; Horse Status: Recovered; Vaccination Status: Status Unknown;

Comments: Horse came from a dealer/kill pen rescue in southern Wisconsin;
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Strangles
Whatcom County, WA
Outbreak Identifier: 7642
Alert ID: 5217
September 09, 2026
Confirmed Case(s) - Voluntary Quarantine

Asst State Veterinarian-WSDA

Number Confirmed: 1; 
Number Exposed: 3; 
Facility Type: Private Facility; 
Comments: Horse recently purchased in TX with another horse. 2 others on property have been secluded after dx. Under vet care and recovering.;
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Strangles
Dane County, WI
Outbreak Identifier: 7637
Alert ID: 5212
September 05, 2026
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 13; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Pleasure Riding; Clinical Signs: mucopurulent nasal discharge, intermittent cough, fever (102), moderate lymphadenopathy without drainage; Confirmation Date: 8/26/2026; Horse Status: Recovering; Vaccination Status: Status Unknown;
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Strangles
Delaware County, NY
Outbreak Identifier: 7633
Alert ID: 5208
September 05, 2026
Confirmed Case(s) - Voluntary Quarantine

Attending Veterinarian and State Veterinarian

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

Horse 1: 
Age: 11; Gender: Gelding; Breed: Paint; Usage: Trail Riding; Onset of Clinical Signs: 8/31/2026; Clinical Signs: mild, infrequent cough, and some nodules that were originally assumed to be bee stings but are large and now opening and weeping; Confirmation Date: 9/4/2026; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;
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Strangles
King County, WA
Outbreak Identifier: 7629
Alert ID: 5204
September 04, 2026
Confirmed Case(s) - Voluntary Quarantine

Asst State Veterinarian-WSDA

Number Confirmed: 20; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 
Comments: large outbreak under vet care. Guttoral pouch lavage samples. Disease has been going on since June.;
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Strangles
Marathon County, WI
Outbreak Identifier: 7624
Alert ID: 5199
September 03, 2026
Confirmed Case(s) - Voluntary Quarantine

Wisconsin Department of Agriculture, Trade and Consumer Protection

Number Confirmed: 1; 
Number Suspected: 3; 
Number Exposed: 2; 

Horse 1: 
Age: 16; Gender: Mare; Breed: Warmblood (WB); Confirmation Date: 8/7/2026; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;
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Strangles
Marion County, FL
Outbreak Identifier: 7621
Alert ID: 5196
September 02, 2026
Confirmed Case(s) - Official Quarantine

Florida Department of Agriculture and Consumer Services

Number Confirmed: 1; 
Number Exposed: 17; 
Facility Type: Private Facility; 
Comments: This is the 23rd confirmed case of strangles for Florida in 2026.;
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