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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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Pigeon Fever
Laramie County, WY
Outbreak Identifier: 7592
Alert ID: 5165
August 25, 2026
Confirmed Case(s) - No Quarantine

State Veterinarian

Number Confirmed: 3; 
Number Exposed: 15; 
Facility Type: Private Facility;
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Pigeon Fever
Albany County, WY
Outbreak Identifier: 7576
Alert ID: 5155
August 20, 2026
Confirmed Case(s) - No Quarantine

State Veterinarian

Number Confirmed: 2; 
Number Exposed: 8; 
Facility Type: Private Facility; 
Previous Alerts: 5148
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Pigeon Fever
Albany County, WY
Outbreak Identifier: 7577
Alert ID: 5149
August 19, 2026
Ongoing Investigation

State Veterinarian

Number Suspected: 2; 
Number Exposed: 15; 
Facility Type: Boarding Facility;
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Pigeon Fever
Albany County, WY
Outbreak Identifier: 7576
Alert ID: 5148
August 19, 2026
Confirmed Case(s) - No Quarantine

State Veterinarian

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 10; 
Facility Type: Private Facility;
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Pigeon Fever
Deschutes County, OR
Outbreak Identifier: 7553
Alert ID: 5125
August 12, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 16;
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Pigeon Fever
Gallatin County, Missoula County, Beaverhead County, MT
Outbreak Identifier: 7541
Alert ID: 5112
August 07, 2026
Confirmed Case(s) - Voluntary Quarantine

State Veterinarian

Number Confirmed: 4; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Comments: Multiple cases of Pigeon Fever reported in Gallatin, Missoula, and Beaverhead Counties in Montana. 4 cases confirmed, additional cases are suspected. Horses confirmed have been placed under quarantine. Unknown how many additional horses have been exposed.;
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Pigeon Fever
Deschutes County, OR
Outbreak Identifier: 7531
Alert ID: 5102
August 05, 2026
Confirmed Case(s) - Official Quarantine

State Department of Agriculture

Number Confirmed: 1; 
Number Suspected: 5; 
Number Exposed: 44;
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