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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
October 03, 2015 Equine Herpes Viruses Parx racetrack, PA Confirmed case(s): Quarantine
Officials at Parx Racing confirmed on Friday that a horse stabled at the track has tested positive for equine herpesvirus. The sick horse, which was in the care of Blaine Servis, has been removed to Mid-Atlantic Equine Medical Center in New Jersey. No horses will be permitted to leave Parx until the track receives authorization from the Pennsylvania Department of Agriculture. Horses stabled in Servis’s barn will not be permitted to race, including those under the care of other trainers in the same building. Horses are being permitted to ship in to race, but will not be allowed to leave until the quarantine period ends.
October 03, 2015 Eastern Equine Encephalitis Hopkinton, NY Information Only
A horse from Hopkinton has tested positive for the Eastern equine encephalitis virus, commonly called Triple E, according to St. Lawrence County Public Health Director James O. Rich. This is the third confirmed Triple E case in the state this year involving horses, with the others occurring in Franklin and Wayne counties, according to the state Department of Health.
October 03, 2015 West Nile Virus Nelson and Montgomery Counties, KY Information Only
The Kentucky State Veterinarian's office announced Oct. 1 that two additional horses—one from Montgomery County and one from Nelson County—have tested positive for West Nile virus (WNV), bringing the commonwealth’s total for the year to six.
September 28, 2015 West Nile Virus 19 counties, TX Information Only
A recent slew of sample submissions indicative of West Nile virus (WNV) have upped the total number of positive cases in Texas to 19. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) confirmed the WNV cases via serological test. Go to--
September 28, 2015 Eastern Equine Encephalitis Van Buren and Calhoun counties, MI Information Only
LANSING – The Michigan Department of Agriculture and Rural Development announced two additional cases of Eastern Equine Encephalitis in horses in Calhoun and Van Buren Counties. MDARD was notified by the United States Department of Agriculture’s National Veterinary Services Lab in Ames, Iowa of the results on September 22. Both the Calhoun horse and the Van Buren horse had a positive blood test suggesting EEE exposure and had already been euthanized. These horses had not been vaccinated for EEE.
September 28, 2015 Eastern Equine Encephalitis Wayne County, NY Information Only
Wayne County Health officials say that a second horse in Wayne County has died from Eastern Equine Encephalitis. Triple Eis a rare disease spread by infected mosquitos carrying the virus and can cause inflammation of the brain.
September 23, 2015 Strangles Volusia County, FL Information Only
A new strangles case in Volusia County has been reported. One out of five horses on the premise is affected. The affected horse was imported from a kill facility in Louisiana two days prior to the investigation. The shipper did not notice the clinical signs but the health certificate clearly shows submandibular swelling. This is the second case for Volusia County and the 22nd case for the State in 2015.
September 21, 2015 Eastern Equine Encephalitis Holmes County, FL Information Only
A new case in Holmes County has been confirmed with EEE. The two year old, unvaccinated Arabian had not been off the property in at least 9 months. Clinical signs began September 10th and the horse was euthanized due to poor prognosis. The case was confirmed positive on September 21st. This is the second confirmed case in Holmes County and the 19th positive in Florida since the beginning of the year.
September 20, 2015 Eastern Equine Encephalitis Wayne County, NY Confirmed case(s): Quarantine
The Wayne County Public Health Department has received notice of a positive report for eastern equine encephalitis (EEE) in a horse in the town of Galen in Wayne County, according to the New York State Department of Health Arbovirus Laboratory.
September 16, 2015 West Nile Virus Multiple counties, CO Information Only
Eleven equine cases of West Nile virus (WNV) have been diagnosed in nine Colorado counties as of Sept 14, 2015. The WNV-positive horses are from Alamosa, Boulder, Broomfield, Conejos, Fremont, Jefferson, Larimer, Park, and Weld counties.