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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.


    

Eastern Equine Encephalitis
Colleton County, SC
Outbreak Identifier: 4901
Alert ID: 2247
September 18, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian’s Office

Number Confirmed: 1;
Age: 12; Gender: Gelding; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: This is the 2nd case of Eastern Equine Encephalitis in SC in 2021. EEE factsheet

West Nile Virus
Benton County, MN
Outbreak Identifier: 4900
Alert ID: 2246
September 17, 2021
Confirmed Case(s) - No Quarantine

Minnesota Board of Animal Health

Number Confirmed: 1;
Number Exposed: 10;
Facility Type: Private Facility;
Age: 2; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/3/2021; Clinical Signs: Ataxia, Fever, Hyperesthetic, Muscle Tremors, Nystagmus; Confirmation Date: 9/15/2021; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: WNV factsheet

West Nile Virus
Maricopa, Pinal, Gila Counties, AZ
Alert ID: 2245
September 17, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian’s Office

Maricopa County

Number Confirmed: 1;
Confirmation Date: 8/24/2021; Horse Status: Euthanized; Vaccination Status: Unvaccinated;

 

Pinal County

Number Confirmed: 1;
Confirmation Date: 9/14/2021; Horse Status: Not Reported; Vaccination Status: Unvaccinated;
Notes: None;

 

Gila County

Number Confirmed: 1;
Clinical Signs: Not Reported; Confirmation Date: 9/16/2021; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: WNV factsheet

West Nile Virus
Weld, Larimer, Mesa Counties, CO
Alert ID: 2244
September 17, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian’s Office

Weld County

Number Confirmed: 1;

Onset of Clinical Signs: 9/7/2021;Confirmation Date: 9/15/2021; 

 

Larimer County

Number Confirmed: 1;
Onset of Clinical Signs: 9/12/2021;Confirmation Date: 9/14/2021; 

 

Mesa County

Number Confirmed: 1;
Onset of Clinical Signs: 9/14/2021; Confirmation Date: 9/16/2021;
Notes: WNV factsheet

West Nile Virus
San Joaquin, CA
Outbreak Identifier: 4893
Alert ID: 2243
September 16, 2021
Confirmed Case(s) - No Quarantine

California Department of Food and Agriculture

Number Confirmed: 1;
Age: 2; Gender: Mare; Breed: Andalusian; Onset of Clinical Signs: 9/10/2021;
Clinical Signs: Ataxia, hyper-reactivity, muzzle fasciculations, falling to knees; Confirmation Date: 9/16/2021; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;
Notes: WNV Factsheet

Equine Infectious Anemia
Ector, Crane, Deaf Smith, Bastrop, Tarrant, Counties, TX
Alert ID: 2242
September 16, 2021
Confirmed Case(s) - Official Quarantine

Texas Animal Health Commission

County: Ector County

Number Confirmed: 1
Breed: Quarter Horse (QH)

Horse Status: Euthanized- 8/11/2021

 

County: Crane County

Number Confirmed: 3
Breed: Quarter Horse (QH)

Horse Status: All euthanized- 9/1/2021

 

County: Deaf Smith County

Number Confirmed: 1
Breed: Quarter Horse (QH)

Horse Status: Euthanized

 

County: Bastrop County

Number Confirmed: 2
Breed: Quarter Horse (QH)

Horse Status: Euthanized- 9/8/2021

 

County: Tarrant County

Number Confirmed: 1- 8/17/2021
Breed: Quarter Horse (QH)

Horse Status: Euthanized

 

County: Tarrant County

Number Confirmed: 1- 8/31/2021
Breed: Quarter Horse (QH)

Horse Status: Euthanized

 

County: Tarrant County

Number Confirmed: 1- 9/3/2021
Breed: Quarter Horse (QH)

Horse Status: Euthanized

 

Notes: The premises have been quarantined and will not be released until TAHC's requirements are met. TAHC staff are working closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures. EIA factsheet

West Nile Virus
Malheur County, OR
Outbreak Identifier: 4892
Alert ID: 2241
September 15, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian’s Office

Number Confirmed: 1;
Number Suspected: 1;
Number Exposed: 7;
Facility Type: Private Facility;
Age: 2; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/8/2021;
Clinical Signs: Acute onset Ataxia, Facial sensitivity/reactivity; Confirmation Date: 9/15/2021; Horse Status: Recovering; Vaccination Status: Status Unknown;
Age: 3; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/7/2021;
Clinical Signs: lethargy, Staggering, Weakness; Confirmation Date: 9/15/2021; Horse Status: Recovering; Vaccination Status: Status Unknown

Notes: For more information go to: WNV factsheet

West Nile Virus
Yakima County, WA
Outbreak Identifier: 4891
Alert ID: 2240
September 15, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian’s Office

Number Confirmed: 1;
Facility Type: Private Facility;
Horse Status: Affected And Alive; Vaccination Status: Not Reported;
Notes: For more information go to: WNV factsheet

West Nile Virus
Texas County, OK
Outbreak Identifier: 4890
Alert ID: 2239
September 15, 2021
Confirmed Case(s) - No Quarantine

State Veterinarian's Office

Number Confirmed: 1;
Facility Type: Private Facility;
Breed: Quarter Horse (QH); Onset of Clinical Signs: 9/5/2021; Clinical Signs: ataxia all four limbs, Hind-end Weakness, Hyperesthetic, Muscle Fasciculations of head and neck, lip fasciculations; Confirmation Date: 9/10/2021; Horse Status: Recovering; Vaccination Status: Unvaccinated;
Notes: WNV factsheet

West Nile Virus
Onondoga County, NY
Outbreak Identifier: 4889
Alert ID: 2238
September 15, 2021
Confirmed Case(s) - No Quarantine

New York Department of Agriculture and Consumer Services

Number Confirmed: 2;
Number Exposed: 10;
Facility Type: Farm;
Age: 21; Gender: Gelding; Clinical Signs: Head down, Muscle Fasciculations, tachycardia, Trembling, violent rolling, no response to loud noises, poor tongue tone;  Horse Status: Deceased; Vaccination Status: Vaccinated  Notes: None

Age: 21; Gender: Mare;Age: 21; Clinical Signs: almost falls over with tail pull to right side, Ataxia, Crossing Front Legs, resistant of bending neck to the right, Weakness;  Horse Status: Recovering; Vaccination Status: Undervaccinated;
Notes: WNV factsheet