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Disease Outbreak 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.

Alert ID: 2484
October 19, 2019
Dallas and Kaufman County, TX
Confirmed case(s): Official Quarantine
Source: Texas Animal Health Commission

Notes: Since September 13, 2019, Texas Animal Health Commission (TAHC) officials have confirmed Equine Infectious Anemia (EIA) in one horse on one Dallas County premises, one horse on a separate Dallas County premises, and three horses on one Kaufman County premises. Please note, EIA was previously confirmed on the Kaufman County premises and reported to the EDCC on September 13, 2019. With the exception of one of the Dallas County cases, all positive horses have been euthanized and the premises will remain under quarantine until TAHC requirements are met. TAHC staff have worked closely with owners and veterinarians to monitor potentially exposed horses and implement biosecurity measures.

Alert ID: 2483
October 18, 2019
Alameda County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

Number Confirmed: 1;
Number Exposed: 60;
Age: 12; Gender: Mare; Breed: Arabian; Onset of Clinical Signs: 10/16/2019;
Clinical Signs: Ataxia, Fever, Recumbency, Unable to Rise; Confirmation Date: 10/17/2019; Vaccination Status: Vaccinated;
Notes: The mare is under veterinary care and has been isolated and quarantined. This horse has no history of travel from its home premises. This case is not related to the Shasta County EHV-1 incident. CDFA is conducting an investigation to identify exposed horses and will provide updates as the investigation continues.;

 

Alert ID: 2482
October 18, 2019
Oregon County, MO
Confirmed Case(s): Voluntary Quarantine
Source: Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 2;
Age: 7; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/13/2019;
Clinical Signs: Fever, Nasal Discharge, Hind limb neurologic signs; Confirmation Date: 10/16/2019; Horse Status: Recovering; Vaccination Status: Status Unknown;
Notes: None;

Alert ID: 2481
October 17, 2019
Weber County, UT
Confirmed case(s): Official Quarantine
Source: Utah Department of Agriculture and Food

Number Confirmed: 1;
Number Exposed: 9;

Gender: Gelding; Onset of Clinical Signs: 10/12/2019;
Clinical Signs: Ataxia, Fever, Nasal Discharge, Recumbency; Confirmation Date: 10/15/2019; Horse Status: Affected And Alive; Vaccination Status: Not Reported;
Notes:
It is not known where this horse contracted the disease but it did compete at barrel racing events on October 2 and October 5 at the Weber County Fairgrounds. Any horses attending these events are considered potentially exposed and close monitoring, including twice-daily temperature readings, is advised. Additional information can be found on the UDAF website at https://ag.utah.gov/2019/10/17/first-confirmed-case-of-ehm-in-utah-this-year/ ;

 

Alert ID: 2480
October 17, 2019
Gibson County, TN
Confirmed Case(s): Voluntary Quarantine
Source: Office of the Tennessee State Veterinarian

Number Confirmed: 1;
Notes: The Office of the Tennessee State Veterinarian has reported a case of Eastern Equine Encephalitis. The affected horse was euthanized. All other horses on premises were vaccinated and will receive boosters in 2 weeks. ;

Alert ID: 2479
October 17, 2019
Crook County, OR
Confirmed Case(s): No Quarantine
Source: Office of the Oregon State Veterinarian

Number Confirmed: 1;
Age: 6; Gender: Gelding; Breed: Quarter Horse (QH);
Clinical Signs: Ataxia, Facial twitching, Hypersensitivity to Touch, Head shaking; Confirmation Date: Not Reported; Horse Status: Recovering; Vaccination Status: Status Unknown;
Notes: The horse test negative to EHV-1 but weak positive to EPM.;

Alert ID: 2478
October 16, 2019
Franklin County, WA
Confirmed Case(s): No Quarantine
Source: State Veterinarian

Number Confirmed: 1;
Age: 2; Gender: Stallion; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/8/2019;
Clinical Signs: Ataxia; Confirmation Date: 10/15/2019; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

Alert ID: 2477
October 15, 2019
Ashtabula County, OH
Confirmed Case(s): No Quarantine
Source: Ohio Department of Agriculture

Number Confirmed: 1;
Age: 2; Gender: Gelding; Breed: Friesian; Onset of Clinical Signs: 10/3/2019;
Clinical Signs: Ataxia, Depression, Fever, Unresponsive, Couldn't Swallow; Confirmation Date: 10/11/2019; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: This is the fifth horse to test positive for EEE Virus in the state of Ohio in 2019 and the third horse to test positive for EEE in Ashtabula County for 2019. ;

 

Alert ID: 2476
October 15, 2019
Powell County, KY
Confirmed Case(s): No Quarantine
Source: Kentucky Office of the State Veterinarian

Number Confirmed: 1;
Age: Suckling Foal; Breed: Rocky Mountain Horse; Onset of Clinical Signs: 10/9/2019;
Clinical Signs: Ataxia, Down, Progressive Decline; Confirmation Date: 10/15/2019; Horse Status: Deceased; Vaccination Status: Unvaccinated;
Notes: This is Kentucky's second equine West Nile Virus case for 2019. ;

Alert ID: 2475
October 15, 2019
St. Joseph and Allegan County, MI
Confirmed Case(s): No Quarantine
Source: Michigan Department of Agriculture and Rural Development

Location: St. Joseph County
Number Confirmed:
2;
Age: 5; Gender: Mare; Breed: Standardbred; Onset of Clinical Signs: 10/1/2019;
Clinical Signs: Depression, Down, Unable to Rise; Horse Status: Deceased; Vaccination Status: Unvaccinated;
Notes: None;

Age: 3; Gender: Mare; Breed: Belgian; Onset of Clinical Signs: 10/1/2019;
Clinical Signs: Depression, Down, Unable to Rise; Horse Status: Deceased; Vaccination Status: Unvaccinated;
Notes: None;

 

Location: Allegan County 
Number Confirmed:
1;
Age: 24; Gender: Mare; Breed: Arabian Cross; Onset of Clinical Signs: 10/1/2019;
Clinical Signs: Ataxia, Not Eating, Walking in Circles, Progressing to Being Down with an Inability to Get Up, Acting Sleepy; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: None;