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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.



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Alert ID: 1211
March 31, 2019
New Brunswick, NB
Confirmed Case(s): Voluntary Quarantine
Source: Canadian Animal Health Surveillance System

Number Affected: 1;
Onset of Clinical Signs: 3/13/2019; Clinical Signs: Clinical Signs of Strangles, Draining Submandibular Lymph Nodes; Confirmation Date: 3/19/2019; 
Notes: On March 13, 2019, a provincial veterinarian was called to examine a horse with an abscess. Due to the location of abscess and clinical signs, the veterinarian was suspicious of strangles and swabbed the abscess. On 3/19/2019 the laboratory reported Strep. equi equi (Strangles). There are several other horses on the premise. This latest case of strangles is in the south-eastern part of the province and not related to other cases reported. A quarantine of the premise and horses has been made along with visitor restrictions. These animals are being monitored and are being provided with follow-up care.;

Alert ID: 1210
March 29, 2019
Ada County, ID
Confirmed Case(s): Voluntary Quarantine
Source: Idaho Department of Agriculture

Number Affected: 1;
Age: 10; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/27/2019;
Clinical Signs: Ataxia, Fever, Urinary Incontinence; Confirmation Date: 3/28/2019; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

 

Notes: The horse traveled to the Salty Dash Futurity in South Jordan, UT from March 15-17. Horse presented with fever, ataxia and urinary incontinence on March 27th. The horse has not traveled to any other events or locations since returning from the futurity and is currently under veterinary care at a private equine facility in Ada County.

Alert ID: 1209
March 28, 2019
Maricopa County, AZ
Confirmed case(s): Official Quarantine
Source: Arizona Department of Agriculture

Number Affected: 1;
Age: 20; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/25/2019;
Clinical Signs: Neurologic Signs- Severe; Confirmation Date: 3/27/2019; Horse Status: Euthanized; Vaccination Status: Unvaccinated;
Notes: Not associated with the previous case reported in Maricopa County on 3/26/2019. Seven horses exposed in the facility are in Official Quarantine.;

Alert ID: 1208
March 28, 2019
Newport County, RI
Confirmed case(s): Official Quarantine
Source: Rhode Island State Veterinarian

Number Affected: 1;
Clinical Signs: Fever; 
Notes: Several horses were at this farm the weekend of March 23-24, 2019 for an exhibition event, but returned to their home stables at the conclusion of the event. Farm management has been notified of this strangles diagnosis and the RI State Veterinarian has issued an Order of Quarantine for the index farm. Owners of horses that were at the farm for the event and returned home are advised to contact their veterinarian to notify them of the potential exposure to Strep. equi, to self-impose a quarantine where no susceptible animals are to be brought onto or off the farm, monitor temperatures on all susceptible animals on the farm for 14 days, and report any clinical disease consistent with strangles to their attending veterinarian, and the state veterinarian in the state their horse is kept in. At this time, not all of the horses that attended the weekend event are known.

Alert ID: 1207
March 27, 2019
Thurston County, WA
Confirmed Case(s): No Quarantine
Source: Washington State Department of Agriculture

Number Affected: 1;
Age: 3; Gender: Not Reported; Breed: Arabian; Onset of Clinical Signs: 2/25/2019;
Clinical Signs: Nasal Discharge, Small Nodule on Shoulder; Confirmation Date: 3/4/2019; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

Alert ID: 1206
March 26, 2019
Alameda County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

Number Affected: 1;
Age: 3; Gender: Mare; Breed: Thoroughbred (TB); 
Clinical Signs: Neurologic Signs- Severe; Confirmation Date: 3/23/2019; Horse Status: Euthanized; Vaccination Status: Not Reported;
Notes: The horse was displaying severe neurologic signs and was confirmed positive for Equine herpesvirus-1 (EHV-1). Due to severity of neurologic signs, the horse was euthanized on Saturday March 23rd. One barn of exposed horses has been placed under quarantine with enhanced biosecurity measures and twice daily temperature monitoring. CDFA personnel were on-site and continue to monitor the situation.;

Alert ID: 1205
March 26, 2019
Maricopa County, AZ
Confirmed case(s): Official Quarantine
Source: Arizona Department of Agriculture

Number Affected: 1;
Age: 8; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/21/2019;
Clinical Signs: Fever, Tachycardic, limb edema;  Notes: The horse was sent to a Veterinary Hospital for ventricular tachycardia, limb edema and fever and was positive for non-neuropathogenic virus. This horse had been at St. George/Hurricane, UT at "Dixie Classic" Washington County Legacy Horsepark. Following this event, the horse DID NOT attend any additional equine events and did not have any further travel history.

Alert ID: 1204
March 26, 2019
Yavapai County, AZ
Confirmed case(s): Official Quarantine
Source: Arizona Department of Agriculture

Age: 16; Onset of Clinical Signs: 3/22/2019; Clinical Signs: Neurological Signs; Horse Status: Euthanized; Vaccination Status: Status Unknown; Notes: Lab tests were positive for Equine Herpesvirus Myeloencephalopathy.

Alert ID: 1203
March 26, 2019
Polk County, IA
Confirmed case(s): Official Quarantine
Source: Iowa State Department of Agriculture and Land Stewardship

Number Affected: 1;
Age: 17; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/20/2019;
Clinical Signs: Lameness, Neurological Signs; Confirmation Date: 3/25/2019; Horse Status: Euthanized;

Alert ID: 1202
March 26, 2019
Clark County, NV
Outbreak Update
Source: Nevada State Veterinarian

On Monday, the Nevada Department of Agriculture (NDA) lifted the first quarantine in Clark County and,  provided no additional positive cases of Equine Herpes Virus – Type 1 (EHV-1) are reported, the other two quarantines will be lifted later this week.