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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.

    
Alert ID: 1587
February 27, 2020
Equine Infectious Anemia
Rural Municipality of Whitehorse, YT
Confirmed case(s): Official Quarantine
Outbreak Identifier: 4095
Source: Canadian Food Inspection Agency

Number Confirmed: 1;
Notes: On February 19, 2020, a positive EIA result was confirmed by the CFIA’s national reference laboratory for a horse located on a premises in the rural municipality of Whitehorse in Yukon. The horse had been sampled by an accredited veterinarian at the owners’ request after they had taken ownership of it. No clinical signs of 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 its 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 positive cases. ;

Alert ID: 1586
February 25, 2020
Equine Influenza
Multnomah County, OR
Confirmed Case(s): Voluntary Quarantine
Outbreak Identifier: 4094
Source: Attending Veterinarian

Number Confirmed: 1;
Number Suspected: 9
Age: 9; Gender: Gelding; Breed: Thoroughbred (TB); Onset of Clinical Signs: 2/21/2020;
Clinical Signs: Coughing, Fever, Nasal Discharge; Confirmation Date: 2/21/2020; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;
Notes: This horse also tested positive for EVH- the respiratory form.

Alert ID: 1585
February 25, 2020
Equine Influenza
Multnomah County, OR
Confirmed Case(s): Voluntary Quarantine
Outbreak Identifier: 4094
Source: Attending Veterinarian

Number Confirmed: 1;
Number Suspected: 9
Age: 9; Gender: Gelding; Breed: Thoroughbred (TB); Onset of Clinical Signs: 2/21/2020;
Clinical Signs: Coughing, Fever, Nasal Discharge; Confirmation Date: Not Reported; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;
Notes: This horse also tested positive for EVH- the respiratory form.

Alert ID: 1584
February 24, 2020
Equine Infectious Anemia
Polk County, IA
Confirmed case(s): Official Quarantine
Outbreak Identifier: 4093
Source: Iowa Department of Agriculture

Number Confirmed: 3;
Number Exposed: 25;
Breed: Quarter Horse (QH); Clinical Signs: Not Reported; Confirmation Date: 2/24/2020; Horse Status: Affected And Alive; Vaccination Status: Not Reported;
Notes: The premises where the three positive Quarter horses are housed has been quarantined. All other horses located at the premises are being tested this week. ;

Alert ID: 1583
February 24, 2020
Strangles
Worcester County, MA
Confirmed case(s): Official Quarantine
Outbreak Identifier: 4092
Source: Attending Veterinarian

Number Confirmed: 1;
Number Suspected: 1:

Number Exposed: Not Reported;
Age: 9; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 2/9/2020;
Clinical Signs: Lymphadenopathy, Nasal Discharge; Confirmation Date: 2/17/2020; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;
Notes:
Two horses shipped from Lebanon PA on 2/7/20 with an overnight in Connecticut. Both had nasal discharge. The afebrile horse tested positive for Streptococcus equi equi on nasal bacterial culture. The other horse had a fever and significant nasal discharge and was only positive for Streptococcus zooepidemicus.

Alert ID: 1582
February 24, 2020
Equine Herpesvirus- Neurologic
Powhatan County, VA
Confirmed case(s): Official Quarantine
Outbreak Identifier: 4091
Source: Virginia Department of Agriculture and Consumer Services

Number Confirmed: 1;
Number Exposed: 53;
Age: 19; Gender: Gelding; Breed: Thoroughbred (TB); Onset of Clinical Signs: 2/20/2020;
Clinical Signs: Hind limb ataxia, Urine dribbling progressing to recumbent; Confirmation Date: 2/21/2020; Horse Status: Euthanized; Vaccination Status: Not Reported;
Notes: On Friday February 21, the State Veterinarian’s Office of the Virginia Department of Agriculture and Consumer Services (VDACS) confirmed one horse tested positive for Equine Herpesvirus-1 (EHV-1), the virus that causes Equine Herpes Myeloencephalopathy. The infected horse was at a boarding stable in Powhatan County. The boarding stable has been placed under quarantine. No horses had left the property in at least two weeks. All exposed horses are being monitored twice daily for fever (temperature over 101.50 F) and other clinical signs. No additional Virginia horses have been exposed. ;

Alert ID: 1581
February 21, 2020
Equine Influenza
Clackamas County, OR
Confirmed Case(s): Voluntary Quarantine
Source: Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 10;
Age: Weanling; Gender: Stallion; Breed: Quarter Horse (QH); Onset of Clinical Signs: 2/14/2020;
Clinical Signs: Fever, Snotty nose; Confirmation Date: 2/21/2020; Horse Status: Affected And Alive; Vaccination Status: Undervaccinated;
Notes: None;

Alert ID: 1580
February 20, 2020
Strangles
King County, WA
Confirmed Case(s): No Quarantine
Outbreak Identifier: 4089
Source: Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 10;
Age: 10; Gender: Gelding; Breed: Paint; Onset of Clinical Signs: 2/15/2020;
Clinical Signs: Fever, Nasal Discharge, swollen submandibular lymph nodes; Confirmation Date: 2/20/2020; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;
Notes: Horse originated from a sales auction and was transported to a private boarding facility, came down with symptoms a couple weeks later.;

Alert ID: 1579
February 18, 2020
Corona Virus
Maricopa County, AZ
Confirmed Case(s): No Quarantine
Outbreak Identifier: 4088
Source: Attending Veterinarian

Number Confirmed: 1;
Number Exposed: 5;
Age: 5; Gender: Gelding; Breed: Saddlebred Cross; Onset of Clinical Signs: 2/9/2020;
Clinical Signs: Anorexia, Fever, Laying Down; Confirmation Date: 2/13/2020; Horse Status: Recovering;
Notes:
This appears to be an isolated case. This is a case of equine Coronavirus and does not effect humans. For more information about Coronavirus click here.

Alert ID: 1578
February 14, 2020
Equine Herpesvirus- Neurologic
Harris County, TX
Confirmed case(s): Official Quarantine
Outbreak Identifier: 4087
Source: Texas Animal Health Commission

Number Confirmed: 1;
Number Exposed: Not Reported;
Notes: The Texas Animal Health Commission (TAHC) received confirmation of Equine Herpes Myeloencephalopathy (EHM), the neurologic disease linked to Equine Herpes Virus (EHV-1), in a hunter jumper horse visiting Texas from Wyoming. The EHM positive horse traveled to Katy, Texas to participate in a hunter jumper event that began on January 29. The infected horse has not visited any other events in Texas. The infected horse was immediately isolated and quickly relocated to a Brazos County veterinary hospital for care after showing signs of ataxia and other neurologic signs consistent with EHM. Horses that were known to have come in direct contact with the infected horse were in an isolated area of the facility, and the directly exposed horses are now under quarantine and veterinary monitoring.