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EDCC September 2026 Statistics
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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.

Rabies
Aiken County, SC
Outbreak Identifier: 7758
Alert ID: 5334
October 17, 2026
Confirmed Case(s) - No Quarantine

South Carolina Department of Public Health

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: The Aiken County horse was submitted to DPH's laboratory for testing Aug. 18, 2026, and was confirmed to have rabies Aug. 19, 2026.;
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Equine Influenza
Wellington County, ON
Outbreak Identifier: 7757
Alert ID: 5333
October 16, 2026
Confirmed Case(s) - Voluntary Quarantine

Ontario Ministry of Agriculture, Food, and Agribusiness

Number Confirmed: 1; 
Number Suspected: 25; 
Number Exposed: 25; 
Facility Type: Private Facility; 

Horse 1: 
Age: 6; Gender: Gelding; Onset of Clinical Signs: 10/6/2026; Clinical Signs: During the week of Oct 5, 2026 fevers (39.5-40 C) started appearing in the stabled horses followed by coughing. The virus has quickly spread affecting approximately half of the resident horses with both stabled and outdoor horses affected. Influenza was confirmed by PCR on nasal swabs. EHV-5 is also present.; Confirmation Date: 10/15/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: The facility manager, working with their veterinarian, has implemented voluntary animal movement restrictions and infection control procedures.;
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West Nile Virus
Knox County, TN
Outbreak Identifier: 7756
Alert ID: 5332
October 16, 2026
Confirmed Case(s) - No Quarantine

Tennessee Department of Agriculture

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown;
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Pigeon Fever
Deschutes County, OR
Outbreak Identifier: 7755
Alert ID: 5331
October 16, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Exposed: 1;
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Pigeon Fever
Jackson County, OR
Outbreak Identifier: 7754
Alert ID: 5330
October 16, 2026
Suspected Case - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Exposed: 1;
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Pigeon Fever
Deschutes County, OR
Outbreak Identifier: 7753
Alert ID: 5329
October 16, 2026
Suspected Case - Official Quarantine

State Department of Agriculture

Number Suspected: 1; 
Number Exposed: 9;
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West Nile Virus
Sacramento County, CA
Outbreak Identifier: 7752
Alert ID: 5328
October 15, 2026
Confirmed Case(s) - No Quarantine

California Department of Food and Agriculture

Number Confirmed: 1; 

Horse 1: 
Age: Yearling; Gender: Filly; Breed: Paint; Onset of Clinical Signs: 10/7/2026; Clinical Signs: Muscle fasciculations, hypersensitivity, muscle atrophy, ataxia; Confirmation Date: 10/14/2026; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Comments: The seventeenth (17th) equine case of West Nile Virus in California in 2026 was confirmed in Sacramento County. On October 14, 2026, an unvaccinated 10-month-old Paint filly in Sacramento County displaying neurologic signs was confirmed positive for West Nile Virus. The filly is alive and recovering.;
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Pigeon Fever
Crook County, OR
Outbreak Identifier: 7751
Alert ID: 5327
October 15, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Suspected: 3; 
Number Exposed: 1;
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Pigeon Fever
Deschutes County, OR
Outbreak Identifier: 7750
Alert ID: 5326
October 14, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Suspected: 5; 
Number Exposed: Unknown;
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Pigeon Fever
Crook County, OR
Outbreak Identifier: 7749
Alert ID: 5325
October 14, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Exposed: 1;
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