West Nile Cases Confirmed in Oregon, Minnesota Horses
Erica Larson
August 30, 2016
Oregon reported its first case of the year, while the case count in Minnesota has reached 11.
Oregon reported its first case of the year, while the case count in Minnesota has reached 11.
The recent cases are located farther north than detections in previous years, Washington State University reported.
Both affected horses–one from Barren County and one from Hardin County–were unvaccinated, but are recovering.
Late summer is peak transmission season for West Nile, and equine case numbers are rising in many regions.
Preventing disease is less expensive than treating it, so officials are encouraging horse owners to be proactive.
Both cases were confirmed in unvaccinated horses from Uintah County.
There has been one confirmed equine WNV case in the state so far this year.
California has confirmed eight and Minnesota has reported seven WNV cases in horses thus far in 2016.
The two unvaccinated horses from Boundary County died as a result of the disease.
A horse in Churchill County and another in Clark County have tested positive for West Nile virus.
The 9-year-old Quarter Horse mare from Muskogee County was euthanized. Her vaccination history is unknown.
Of the 832 respondents, 713 (86%) said their horses are up-to-date on their West Nile virus vaccines.
The laboratory also confirmed one case of Eastern equine encephalitis in a horse residing in Orange County.
So far in 2016, five Louisiana horses have died as a result of Eastern equine encephalitis.
The 4-year-old Quarter Horse gelding resided in St. Croix County.
A horse in Weld County, Colorado, was diagnosed with West Nile Virus (WNV) on August 5, making it the first confirmed case of WNV in
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