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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.


August 22, 2017
Eastern Equine Encephalitis
Juneau County, WI
Confirmed Case(s): No Quarantine
Source: Wisconsin Department of Agriculture, Trade, and Consumer Protection

The Wisconsin Department of Agriculture, Trade, and Consumer Protection has confirmed its 8th case of Eastern Equine Encephalitis in 2017. The unvaccinated, 8-year-old QH mare from Juneau County showed neurologic signs, became nonambulatory and was subsequently euthanized.

August 21, 2017
Eastern Equine Encephalitis
Juneau, Chippewa and Monroe Counties, WI
Confirmed Case(s): No Quarantine
Source: Wisconsin Department of Agriculture, Trade and Consumer Production

The Wisconsin Department of Agriculture, Trade and Consumer Production confirmed three new cases of Eastern Equine Encephalitis. The first horse a 17-year-old Belgian mare from Juneau County died, the second horse an 8-year-old Standardbred mare from Chippewa County died and the third horse an 8-year-old pony gelding from Monroe County was euthanized. All horses were unvaccinated and had neurologic signs before being unable to rise. No quarantines were issued. 

August 21, 2017
West Nile Virus
Payette County, ID
Confirmed Case(s): No Quarantine
Source: Idaho State Department of Agriculture

The Idaho State Department of Agriculture confirmed a case of West Nile Virus in a one year old Quarter Horse located in Payette County. The horse has  an unknown vaccination history and is the first case of WNV in Idaho in 2017.  For more info go to:  http://www.agri.idaho.gov/AGRI/

 

August 19, 2017
West Nile Virus
Lyon and Washoe Counties, NV
Confirmed Case(s): No Quarantine
Source: Nevada Department of Agriculture

The Nevada Department of Agriculture (NDA) has confirmed three horses tested positive for West Nile Virus (WNV) in western Nevada in the last two weeks. All three horses were not vaccinated.

August 19, 2017
West Nile Virus
Reno County, KS
Confirmed Case(s): No Quarantine
Source: Kansas Department of Agriculture

The Kansas Department of Agriculture Division of Animal Health (KDA–DAH) confirmed a horse in Reno County has tested positive for West Nile virus (WNV). The horse was euthanized due to the severity of the illness. This is the first reported equine case of WNV in Kansas in 2017. Horse owners are encouraged to vaccinate their horses to prevent the spread of WNV.  For more information go to:  http://www.agriculture.ks.gov/divisions-programs/division-of-animal-health

August 19, 2017
Equine Infectious Anemia
Finney County, KS
Confirmed case(s): Official Quarantine
Source: Kansas Department of Agriculture

The Kansas Department of Agriculture Division of Animal Health (KDA–DAH) confirmed a horse in Finney County has tested positive for Equine Infectious Anemia (EIA). The facility is under quarantine and all the exposed horses were tested, with five additional positive EIA horses. Since the disease is not curable, the affected horses will be euthanized. The remaining horses at the facility will be observed and retested in 60 days.  For more info go to:  http://www.agriculture.ks.gov/divisions-programs/division-of-animal-health

August 18, 2017
West Nile Virus
San Joaquin and Glenn Counties, CA
Confirmed Case(s): No Quarantine
Source: California Department of Food and Agriculture

The California Department of Food and Agriculture has confirmed two additional equine cases of West Nile Virus in an unvaccinated yearling Warmblood filly in San Joaquin County and a three year old Appaloosa gelding of unknown vaccination status in Glenn County which were displaying neurologic signs. The Warmblood filly was euthanized due to the severity of the disease and the Appaloosa gelding has been treated and is recovering. For 2017, a total of seven(7) horses have been confirmed positive for WNV in California . For more information visit: https://www.cdfa.ca.gov/ahfss/animal_health/WNV_Info.html

August 18, 2017
West Nile Virus
Hart and Russell Counties, KY
Confirmed Case(s): No Quarantine
Source: Kentucky Department of Agriculture

The Kentucky Department of Agriculture has confirmed a diagnosis of West Nile Virus in two horses. On 8/13/2017 in Hart County an 8-year old Tennessee Walking Horse gelding was lethargic and had muzzle twitching, muscle fasciculations and rear limb ataxia. The horse had no vaccination history and is reported to be improving. On 8/14/2017 in Russell County a 3-years old Thoroughbred had muscle fasciculations with mild ataxia which worsened over 24 hours. This horse had been vaccinated in 2015, thought to have been vaccinated in 2016 and received a single vaccination in the spring of 2017.  For more information go to:  http://www.kyagr.com/statevet/equine-infectious-diseases.html#WNV

August 18, 2017
West Nile Virus
Carbon County, UT
Confirmed Case(s): No Quarantine
Source: Utah Department of Agriculture and Food

On August 17th the Utah Department of Agriculture and Food confirmed West Nile Virus in an unvaccinated 9-year old Quarter Horse mare from Carbon County. The horse was ataxic with muscle faciculations and facial twitching at the onset of clinical signs on August 14th. As of August 14th the horse has responded to treatment and is expected to recover. This is the second WNV case in Carbon County. For more information about WNV go to: https://aaep.org/sites/default/files/Documents/Outside%20Linked%20Documents/DiseaseFactsheet_WNV.pdf

 

August 17, 2017
Equine Herpes Viruses
Culpeper, VA
Outbreak Update
Source: Virginia Department of Agriculture and Consumer Services

On August 15, the Virginia Department of Agriculture and Consumer Services (VDACS) confirmed a diagnosis of Equine Herpesvirus-1 (EHV-1) on two horses from Culpeper County. A third horse on the quarantined farm developed a fever the evening of August 16 and tested positive for the neuropath genic strain of the Equine Herpes Virus -1. The quarantine will be extended until September 6th. This third horse is under veterinary care and has no other symptoms. Because the farm is under quarantine, no additional horses have been exposed.