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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.


February 04, 2017
Equine Herpes Viruses
Lexington , KY
Outbreak Update
The status of Keeneland’s Rice Road Training Center is unchanged since the previous reports. The population of horses continues to be monitored daily. Sample collection and testing of the horses in each of the barns is being scheduled and planned for next week.
February 04, 2017
Equine Herpes Viruses
Oldham, KY
Quarantine Released
Testing of the horses on premises 2 in Oldham, KY has been completed.  As of 2/3/2017 all horses have had two negative test results on nasal swabs and whole blood and all are 14 days post exposure. The KY Office of State Veterinarian has released the quarantine imposed on January 11, 2017. The horses are under no further restrictions.
January 31, 2017
Equine Herpes Viruses
Los Angeles County, CA
Quarantine Released
No new cases. The last affected horse at this facility has met the negative test requirements and this facility has been released from quarantine. We no longer have any equine facilities in Los Angeles County and the State of California under quarantine for EHM.
January 30, 2017
Equine Herpes Viruses
Los Angeles County, CA
Outbreak Update
No new cases. CDFA continues to monitor the situation. There have been no additional detections since the initial cases confirmed on January 10, 2017.
January 30, 2017
Equine Herpes Viruses
Los Angeles Equestrian Center, CA
Quarantine Released
The last horse remaining in isolation has met the negative test requirements and has been released from quarantine isolation. The LA Equestrian Center quarantine has been released.
January 29, 2017
Equine Herpes Viruses
Kentucky, United States
Information Only
For an update (January 27, 2017) on the current directive from the Kentucky Office of State Veterinarian regarding entry of horses residing at Fair Grounds Race Course in New Orleans onto a Kentucky racetrack or their associated training facilities go to: http://www.kyagr.com/statevet/documents/OSV_EQ_17_FairGndsNOLA_Protocol_001.pdf
January 27, 2017
Equine Herpes Viruses
Oldham County, KY
Outbreak Update
Premises 2: Daily monitoring and assessment of the horses in the exposed quarantine barn continues with no evidence of further transmission of EHV1. Collection of samples (swabs and blood) from these horses has been scheduled to be completed next week to determine their eligibility to be released from restrictions.
January 27, 2017
Equine Herpes Viruses
Oldham County, KY
Quarantine Released
Premises 1: Testing of the barn’s population of horses that had been exposed to EHV1 was completed 1/25/2017; all horses tested NEG on both nasal swabs and whole blood. Having been greater than 14 days post exposure, and each horse now having two (2) negative sets (nasal and blood) of results – The Ky Office of State Veterinarian has released the quarantine imposed on January 5, 2017 and the horses are under no further restrictions.
January 27, 2017
Equine Herpes Viruses
Turfway Park, Florence, KY
Outbreak Update
The two positive horses identified and described on 1/24/17 were moved offsite and are securely isolated on a private farm. Monitoring of the general population continues with no evidence of further cases developing. The previously established and described protocols for ship-ins, racing, training and monitoring remain in effect.
January 27, 2017
Equine Herpes Viruses
Keeneland, Lexington, KY
Outbreak Update
Testing of samples collected on 1/25/17 identified a second positive horse in barn one and three positive horses in barn two for ‘wild strain’ EHV-1. The horse in barn one is a 3 year old Thoroughbred colt. The three horses in barn two are all two year old Thoroughbred fillies. All positive horses tested positive on nasal swab, negative on blood. The colt was moved to secured isolation on the 25th, the three fillies were moved to isolation on the 26th. Each of the two quarantined barns are secured, entry into the barns restricted to essential personnel only and biosecurity levels are implemented at highest level. In addition to the affected barns, heightened biosecurity has been implemented in the entire barn area that includes directing and restricting entrance into each barn, as well as requiring disinfecting upon entry and exit of each barn.