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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: 1540
December 06, 2019
Equine Herpesvirus- Neurologic
Montgomery County, VA
Quarantine Released

Number Confirmed: 1;
Number Exposed: 14;
Notes: The quarantine at the Virginia Maryland Regional College of Veterinary Medicine is released.;

Alert ID: 1539
December 02, 2019
West Nile Virus
Fulton County, OH
Confirmed Case(s): No Quarantine
Source: Ohio Department of Agriculture

Number Confirmed: 1;
Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Onset of Clinical Signs: 10/22/2019;
Clinical Signs: Fever, Muscle Fasciculations, Weakness; Confirmation Date: 10/24/2019; Horse Status: Recovering; Vaccination Status: Unvaccinated;
Notes: This is the third case of WNV for Ohio in 2019. ;

Alert ID: 1538
November 27, 2019
Equine Herpesvirus- Neurologic
Remington Park Racetrack, OK
Confirmed case(s): Official Quarantine
Source: Oklahoma Department of Agriculture

Number Confirmed: 10;
Number Exposed: Approximately 100;
Update 11/27/2019: Eight additional horses in the second quarantine barn have tested PCR positive for EHV-1. These horses have been moved to the Isolation Barn and are clinically normal. The index case was the only horse that had neurologic signs. Information to date indicates the virus has been contained to the two quarantined barns.

Alert ID: 1537
November 27, 2019
Equine Herpesvirus- Neurologic
San Bernardino County, CA
Confirmed case(s): Official Quarantine
Source: California Department of Food and Agriculture

Number Confirmed: 10;
Number Exposed: 10
Outbreak Update: 11/27/2019- One additional exposed horse on the index premise, a 12-year-old Quarter Horse mare, became febrile and has been confirmed positive for EHV-1. CDFA continues to monitor the situation.;

Alert ID: 1536
November 27, 2019
Equine Influenza
Snohomish County, WA
Confirmed Case(s): Voluntary Quarantine
Source: Washington Sate Department of Agriculture

Number Confirmed: 2;
Number Exposed: 28;
Age: 12; Gender: Mare; Breed: Mixed breed; Onset of Clinical Signs: 11/18/2019;
Clinical Signs: coughing, Fever, Snotty nose; Confirmation Date: 11/21/2019; Horse Status: Recovering; Vaccination Status: Unvaccinated;

 

Age: Suckling Foal; Breed: Mixed breed; Onset of Clinical Signs: 11/18/2019;
Clinical Signs: coughing, Fever, Snotty nose; Confirmation Date: 11/21/2019; Horse Status: Recovering; Vaccination Status: Unvaccinated;
Notes: Attending vet is caring for other horses in the barn and self-quarantine. Others horses are vaccinated and no showing no signs.;

Alert ID: 1535
November 25, 2019
Equine Herpesvirus- Neurologic
San Bernardino County, CA
Outbreak Update
Source: California Department of Food and Agriculture

Number Confirmed: 9

Number Exposed: 12

Notes: One additional exposed horse on the index premise, an 11-year-old Paint stallion, became febrile and has been confirmed positive for EHV-1. To date, a total of four (4) horses have been neurologic and an additional five (5) horses have become febrile, all of which have been confirmed positive for EHV-1. Three (3) of the neurologic horses were euthanized due to severity of clinical signs and all other horses on the property are alive and recovering. CDFA is onsite and continues to monitor the situation.

 

Alert ID: 1534
November 23, 2019
Equine Herpesvirus- Neurologic
Baltimore County, MD
Confirmed case(s): Official Quarantine
Source: Maryland Department of Agriculture

Number Confirmed: 1;
Number Exposed: 25;
Age: Not Reported; Gender: Not Reported; Breed: Not Reported; Onset of Clinical Signs: Not Reported;
Clinical Signs: Not Reported; Confirmation Date: Not Reported; Horse Status: Euthanized; Vaccination Status: Status Unknown;
Notes: The Maryland Department of Agriculture’s Animal Health Program confirmed a horse in Baltimore County tested positive for Equine Herpesvirus (EHV-1) on Nov. 21, 2019. Samples from the symptomatic horse were sent to the Frederick Animal Health Laboratory, where the non-neurotropic strain of EHV-1 was confirmed. The horse was euthanized yesterday due to complications. The Baltimore County farm has been placed on a hold order by the department, prohibiting movement on or off the farm until any exposed horses have been cleared for release. The horse was previously housed in an isolated barn with three other horses. The farm stables a total of 25 horses, none of which are showing clinical signs of EHV-1 or fever at this time. The veterinary practitioner and stable are providing follow-up care to the asymptomatic horses on the farm. Possible links to the positive EHV-1 equine are actively being investigated. For more information go to:  https://news.maryland.gov/mda/press-release/2019/11/22/baltimore-county-horse-tests-positive-for-equine-herpesvirus/

 

Alert ID: 1533
November 23, 2019
Equine Herpesvirus- Neurologic
Kentucky Racetracks, KY
Information Only
Source: Kentucky State Veterinarian

Based on information from Remington Park racetrack in Oklahoma regarding the equine herpesvirus outbreak,  the Kentucky State Veterinarian is directing Kentucky racetracks and their associated training centers to not allow movement of horses which have resided or been at Remington Park (racing, training, transiting, etc.) on or after November 12 without prior approval from the KY State Veterinarian Office   Approval to move horses previously from Remington to a KY track will be made on an individual basis and in consultation with the track they are desiring to enter. Any approval granted will be made following testing of the horse conducted after it’s departure from Remington Park and further evaluation. During the interim, we continue to allow horses meeting our normal entry requirements from Remington Park to enter KY and stable on a private farm.  Farms receiving such horses should be aware of the elevated risk and implement good husbandry practice that includes isolation of new arrivals and all other guidance offered by their veterinarian.

Alert ID: 1532
November 23, 2019
Eastern Equine Encephalitis
Beaufort County, SC
Confirmed Case(s): No Quarantine
Source: Clemson Livestock Poultry Health

Number Confirmed: 1;
Age: 4; Gender: Stallion; Breed: Thoroughbred (TB); Horse Status: Deceased; Vaccination Status: Status Unknown;
Notes: This is the fifth case of EEE in South Carolina for 2019 and second in Beaufort County. ;

Alert ID: 1531
November 22, 2019
Equine Herpesvirus- Neurologic
New Mexico Racetracks, NM
Information Only
Source: New Mexico Livestock Board

The New Mexico State Racing Commission, is now restricting entry of horses from Remington Park, Oklahoma following the recent EHV-1 outbreak at the racetrack. No horses that are coming from Remington Park will be permitted on New Mexico racetrack grounds until further notice.