Disease Alerts

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

Horse 1: 
Age: 13; Gender: Gelding; Breed: Quarter Horse (QH); Horse Status: Euthanized; 

Comments: A confirmed EIA positive equid must be euthanized or quarantined for life 200 yards away from any EIA negative equid as per USDA EIA program rules. Euthanasia was elected for this case and was witnessed by CDFA veterinarians on September 5, 2025. The one (1) potentially exposed horses on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; 
Previous Alerts: 4520

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: On November 12, 2025, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in the rural municipality of Smoky Lake County No. 13, Alberta. The horse had been tested by the CFIA as part of an on-going disease investigation. Clinical signs of disease were not noted at the time of sampling. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horses and any on-premises contact animals. Initial reports indicate there are several other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

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

Horse 1: 
Age: 2; Gender: Mare; Breed: Draft Mix; Usage: Rodeo; Clinical Signs: None, was tested for a sale; Confirmation Date: 9/11/2025; Horse Status: Euthanized;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: Facility quarantined 10/31/25. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: Facility quarantined 10/25. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: Facility quarantined 10/30/25. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: On October 22, 2025, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in Athabasca County No 12, Alberta. The horse had been tested by an accredited veterinarian at the owner’s request to fulfill a U.S. export requirement. No clinical signs of the disease were noted at the time of sampling. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horse and any on-premises contact animals. Initial reports indicate there are other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: On October 22, 2025, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in Clearwater No. 99, Alberta. The owner requested an accredited veterinarian test the horse for EIA because it was exhibiting clinical signs compatible with the disease. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horse and any on-premises contact animals. Initial reports indicate there are other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: Quarantined 9/12/25. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: Quarantined 9/13/25. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;