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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.


Date Disease Location Status
January 21, 2017 Equine Herpes Viruses Turfway Park, Florence, KY Confirmed case(s): Quarantine
The Kentucky Office of State Veterinarian quarantined a barn on the backside of Turfway Park after a horse from that barn tested positive the Equine Herpesvirus Type-1 wild strain on PCR assay. The 2014 Thoroughbred filly, had been stabled in the barn at Turfway from October 30 through January 19, 2017. A nasal swab sample was collected prior to moving the horse to a private facility for breeding in 2017. The filly is currently in isolation offsite on a private farm. The State Veterinarians’ Office issued a directive on Friday night, January 20, that horses in the affected barn are quarantined and security is in place to only allow access by essential personnel.  Results of testing are expected to be available Monday evening, January 23.  The Office will develop schedules to allow eligible horses in the barn to work on the track outside normal training hours after all other horses have returned to their barns. After reviewing movement records of horses in and out of Turfway, horses in two barns at the Keeneland training center have been identified for potential exposure. Each of those barns also has been placed under quarantine, and arrangements are being made to sample those horses.
January 19, 2017 Equine Herpes Viruses Oldham County, KY Outbreak Update
One barn on premises 2 remains under quarantine. Daily monitoring and evaluation of all other barns on the premises continues to provide evidence that strategies utilized thus far have been effective in containing the virus to the original index barn. There is no evidence indicating or suggesting the virus has spread on the premises. Live racing continues at Turfway Park in Northern Kentucky with disease mitigating strategies being effectively utilized. The Kentucky Department of Agriculture’s position disallows horses from affected areas to gain entry to a KY track or sanctioned training facility is unchanged from the directive issued on January 3, 2017. For more information go to: www.kyagr.com/statevet/equine-infectious-diseases.html
January 19, 2017 Equine Herpes Viruses Oldham County, KY Outbreak Update
The investigation and status on Premises 1 is unchanged –no additional cases have developed; daily monitoring and evaluation continues. Live racing continues at Turfway Park in Northern Kentucky with disease mitigating strategies being effectively utilized. The Kentucky Department of Agriculture’s position, which disallows horses from affected areas to gain entry to a KY track or sanctioned training facility, is unchanged from the directive issued on January 3, 2017. For more information go to: www.kyagr.com/statevet/equine-infectious-diseases.html
January 19, 2017 Equine Herpes Viruses New Orleans, LA Outbreak Update
No neurologic symptoms consistent with EHM have been observed since the clinical horse was isolated from Barn 36. The isolated horse from Barn 36 is recovering uneventfully and neurologic symptoms have resolved. Based on the absence of any more horses with neurological signs consistent with EHM, LDAF and infectious disease experts believe the neuropathogenic strain of EHV-1 has been contained. All positive horses have been or will be isolated with enhanced biosecurity and monitoring by recording rectal temperatures twice daily. Horses will be eligible for quarantine release with 2 consecutive negative tests, not less than 72 hours apart, and a minimum of 14 days of quarantine following its last positive test or exposure to a positive horse. More information can be found at:http://www.ldaf.state.la.us/news/update-plan-to-release-horses-at-new-orleans-fair-grounds/
January 18, 2017 Eastern Equine Encephalitis Jefferson County, FL Confirmed Case(s): No Quarantine
On January 18, a new EEE case was confirmed in Jefferson County, Florida. The 6 year old quarter horse mare was a recent rescue and had unknown vaccine history and been transported to Wakulla County days before clinical signs began on December 28. The mare was euthanized due to poor prognosis. This was the fourth confirmed EEE case in Jefferson County and case 24 in Florida for 2016. Cases are maintained by date of onset of clinical signs.
January 16, 2017 Equine Herpes Viruses New Orleans, LA Outbreak Update
On Monday, January 16, 2017, the quarantined horse from Barn 20 at the Fair Grounds racetrack was released from isolation and moved to the barn of origin after receiving two reported negative tests at least 72 hours apart. Enhanced biosecurity continues with the assistance of Louisiana Racing Commission, Fairgrounds, and USDA VS. Additional onsite quarantine capacity has facilitated planned isolation today
January 14, 2017 Strangles Alachua County, FL Confirmed case(s): Quarantine
On January 14, one premise in Alachua County, Florida was placed under quarantine for clinical signs consistent with strangles. The clinical horse was purchased from another farm also currently under strangles quarantine. The purchase and movement occurred 3 weeks prior clinical signs appearing on either farm. the case was reported to the state on January 13. No equids have left the facility since clinical signs began. This is the first case for Alachua County and Florida’s third case in 2017.
January 14, 2017 Equine Herpes Viruses New Orleans, LA Outbreak Update
On January 13, 2017, a new case in Barn 45 at the Fair Grounds racetrack was moved to isolation. January 14, 2017 incident plans were distributed to the Fair Grounds for further distribution to the back stretch. The Racing Commission provided additional biosecurity support with the help of the Louisiana State Police. Testing of pony horses will begin on Monday. Testing of quarantined barns will resume on Tuesday.
January 13, 2017 Equine Herpes Viruses Oldham County, KY Outbreak Update
Results of testing done on horses on the second Oldham County premises did identify 5 additional horses to be positive by PCR on the nasal swab. As was the first case in this investigation, the strain of EHV1 identified is the ‘wild strain’, not the mutated strain. Testing of the each blood sample was reported neg by PCR. The 5 positive horses were removed from the barn and placed in a separate isolation early this morning (1/13/17). Monitoring of horses in the other barns continues, and there has been no evidence discovered suggesting the virus has spread to other barns or areas on the premises. Health monitoring of the population continues and individual reports assessed daily.
January 13, 2017 Equine Herpes Viruses Oldham County, KY Outbreak Update
As of 1/13/2017 there have been no additional cases found at the first Oldham County premises since the last cases diagnosed on 1/6. Daily monitoring continues and the reports show no significant findings. There have been 4 horses on Premises 1 identified as positive, and in all cases the mutated strain of virus was identified. Traces from Premises 1 were conducted and did result in 2 additional horses being identified as positive. Each of these horses are on private facilities. Both of the positive horses and their cohorts remain isolated and monitoring continues.