West Nile Virus (WNV)

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International Equine Disease Report, Second Quarter 2016

October 19, 2017

Vets confirmed cases of EHV, influenza, African horse sickness, piroplasmosis, West Nile virus, and more.... Read More

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Oklahoma Confirms Third Equine WNV Case of 2017

October 12, 2017

The vaccination history for the affected Quarter Horse mare from Kay County is unknown.... Read More

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Seventh Equine WNV Case of 2017 Confirmed in Idaho

October 11, 2017

The unvaccinated yearling Quarter Horse filly is responding to treatment.... Read More

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Additional EEE, WNV Cases Confirmed in New York Horses

October 11, 2017

An Oswego County horse tested positive for EEE and horses in Cayuga, Erie, and St. Lawrence counties contracted WNV. ... Read More

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Mosquito-Borne Diseases Found in Florida, Kentucky Horses

October 10, 2017

Florida horses tested positive for EEE and WNV and a Kentucky horse was euthanized after contracting WNV.... Read More

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Additional EEE, WNV Cases Confirmed in New Jersey Horses

October 09, 2017

A Cumberland County mare was euthanized due to EEE and a Salem County stallion is recovering from WNV.... Read More

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West Nile, EIA Confirmed in Tennessee Horses

October 09, 2017

Horses in Davidson and Knox counties tested positive for WNV and a Bedford County horse tested positive for EIA.... Read More

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Michigan Reporting Additional Equine EEE, WNV Cases

September 30, 2017

To date, the state has confirmed four EEE cases and 14 WNV cases in horses.... Read More

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Ohio Confirms First Equine WNV Cases of 2017

September 16, 2017

Ohio also confirmed a case of EEE in an Ashtabula County horse on Aug. 24. ... Read More

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Texas Owners: Vaccinate Against Mosquito-Borne Illnesses

September 15, 2017

The Texas Animal Health Commission is encouraging owners to vaccinate horses against WNV and EEE.... Read More

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Two Additional WNV Cases Confirmed in Kentucky

September 14, 2017

Neither affected horses was vaccinated against West Nile. Both are currently recovering.... Read More

Horses at different life stages have a variety of immunization requirements.

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Fall Vaccines for Your Horse

September 12, 2017

Horses might need additional risk-based vaccines in the fall months, depending on location and activities. ... Read More

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Kentucky Confirms Sixth Equine WNV Case of 2017

September 11, 2017

The unvaccinated 13-year-old Tennessee Walking Horse gelding from Metcalfe County is reportedly recovering.... Read More

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Oklahoma Horse Owners Encouraged to Vaccinate Against WNV

September 08, 2017

In years past, Oklahoma averaged approximately 40 equine cases per year of WNV and another mosquito-borne disease, EEE.... Read More

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First Confirmed Equine WNV Case in Montana for 2017

August 30, 2017

In 2016 Montana confirmed eight equine WNV cases in seven counties,... Read More

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California Confirms Tenth Equine WNV Case of 2017

August 30, 2017

The most recent case involves an unvaccinated yearling Quarter Horse colt from Lassen County. He is now recovering.... Read More

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Wexford County, Michigan, Horse Contracts WNV

August 23, 2017

The equine mortality rate for West Nile virus can be as high as 30-40%.... Read More

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WNV Confirmed in Two Ontario Horses

August 23, 2017

A 10-year-old gelding from Simcoe County was euthanized, while a 25-year-old mare from Bruce County is recovering.... Read More

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Seventh California Horse Tests Positive for WNV

August 21, 2017

The unvaccinated yearling Warmblood filly from San Joaquin County was euthanized.... Read More

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Kansas Horse Health Alert: Horses Test Positive for EIA, WNV

August 21, 2017

The six EIA-positive horses will be euthanized. The WNV-positive horse has been euthanized.... Read More

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Kentucky's 2017 Equine West Nile Case Count Rises to Five

August 21, 2017

The two newly diagnosed horses are reportedly recovering with veterinary care. ... Read More

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Three Nevada Horses Test Positive for West Nile

August 18, 2017

None of the three affected horses were vaccinated against West Nile virus.... Read More

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Maryland Horse Owners: Keep Vaccinations Up-To-Date

August 16, 2017

Vaccines can help protect horses against potentially deadly West Nile virus and Eastern equine encephalomyelitis.... Read More

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Delaware Reports First Equine WNV Case of 2017

August 16, 2017

The 11-year-old Quarter Horse mare from Kent County, which was not currently vaccinated against WNV, was euthanized.... Read More

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Two More Michigan Horses Test Positive for WNV

August 11, 2017

A Mecosta County Standardbred is recovering, and a Midland County Quarter Horse was euthanized. Both were unvaccinated.... Read More