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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
August 25, 2017 West Nile Virus Dodge 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 received confirmation of its fifth equine West Nile Virus case for 2017.  An unvaccinated 5-year-old Quarter Horse gelding from Dodge County was examined and sampled 8/17 after exhibiting a sudden onset of ataxia, mainly in the front quarters.  The horse was treated and is improving.

August 23, 2017 West Nile Virus Plumas County, CA Confirmed Case(s): No Quarantine
Source: California Department of Food and Agriculture

On August 22, 2017, the California Department of Food and Agriculture confirmed an additional equine case of West Nile Virus in an unvaccinated 2.5-year-old Paint gelding in Plumas County, California displaying neurologic signs was confirmed positive for WNV. The gelding is alive and recovering. For 2017, a total of eight(8) 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 23, 2017 West Nile Virus Morgan County, MO Confirmed Case(s): No Quarantine
Source: University of Missouri Veterinary Health Center

The University of Missouri Veterinary Health Center has confirmed a case of WNV. The 7-year-old mare from Morgan County showed acute onset of clinical signs on August 2nd which included non-weight bearing left hind lameness and recumbency (inability to stand) and was euthanized. The mare had been vaccinated in March of 2017.

August 22, 2017 Eastern Equine Encephalitis Richland County, SC Confirmed Case(s): No Quarantine
Source: South Carolina State Veterinarian

The South Carolina State Veterinarian’s office has received laboratory confirmation of a positive Eastern Equine Encephalitis case from Richland County. The 3 year old TB gelding of unknown vaccination status was euthanized. This is the third case of EEE confirmed in SC in 2017.

August 22, 2017 West Nile Virus Bonner County, ID Confirmed Case(s): No Quarantine
Source: Idaho State Department of Agriculture

The Idaho State Department of Agriculture has confirmed a case of West Nile Virus in Bonner County. The 6 year old HQ horse gelding of unknown vaccination status was recumbent (unable to stand) with hind limb paralysis. This is the second WNV positive diagnosed in Idaho in 2017.

August 22, 2017 West Nile Virus Bruce and Simcoe Counties, ON Confirmed Case(s): No Quarantine
Source: Ontario Ministry of Agriculture, Food and Rural Affairs

On August 21, the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) was notified of two positive test results for West Nile Virus (WNV); one from a 10-year-old gelding in Simcoe County and the other from a 25-year-old mare in Bruce County. The Simcoe County gelding was euthanized after developing severe neurological signs and seizures. The mare developed severe neurological deficits in all four limbs as well as facial hyperaesthesia and is recovering under veterinary medical supervision.

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.