West Nile Virus (WNV)

Article

WNV: Gene Might Figure in Horses' Ability to Fight Virus

June 02, 2010

Mutations in the gene called OAS1 contribute to a horse's ability to fight West Nile Virus (WNV), reported a group of researchers led by David Adelson, PhD, Professor and Chair of Bioinformatics and Computational Genetics from the Universit... Read More

Article

Vaccination Basics For Horses

June 01, 2010

Vaccines are "cheap insurance" to protect your horses from more costly--and potentially deadly--diseases.... Read More

Article

PreveNile West Nile Virus Vaccine Recalled

May 04, 2010

In a letter to veterinarians dated April 28, Brett Whitehead, Director, Equine and Ag Retail Business, of Intervet Schering-Plough Animal Health, encouraged practitioners to return all PreveNile vaccine. The recall was initiated after an increa... Read More

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Regional Threat for West Nile Virus in 2009

April 27, 2010

More than 530 readers of TheHorse.com responded to a poll asking, "Was West Nile virus a threat in your area last year? If so, where do you live?"... Read More

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Virginia Horse Owners Urged to Vaccinate for WNV, EEE

April 26, 2010

The Virginia Department of Agriculture and Consumer Services (VDACS) urges all horse owners to ask their veterinarians for West Nile Virus (WNV) and Eastern Equine Encephalitis (EEE) vaccination recommendations for their animals. An increased number ... Read More

Article

Human WNV Infection Reported Following Equine Necropsy

March 18, 2010

A veterinary student was diagnosed with West Nile virus (WNV) in May 2009 after performing a necropsy on a 4-month-old Welsh pony from Gauteng, South Africa.

Six days after performing the necropsy, the student developed fever, malais... Read More

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Neurologic Diseases

March 08, 2010

Diagnosis and treatment recommendations for neurologic diseases, as discussed at the 2009 AAEP Convention. ... Read More

Article

Different West Nile Virus Genetic Lineage Evolving?

February 08, 2010

It's a variant of Murphy's Law: Anytime you think you have a handle on something, the unexpected happens and you're off balance again. The equine health world might be in this boat now concerning West Nile virus infection in horses.... Read More

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Single-Dose WNV Booster Effective for Pregnant Mares (AAEP 2009)

February 01, 2010

When we only had one vaccine for West Nile virus (WNV) in horses, vaccination was quite simple. Then when different types of vaccines came along, the waters got a little muddier, especially for pregnant mares in which breeders feared risking no... Read More

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Vaccination, WNV, and Colic Fact Sheets Available

January 06, 2010

TheHorse.com is getting 2010 off to a great start with three more Fact Sheets on topics that are important to our readers. The new fact sheets cover vaccinations for your horse, West Nile virus, and equine colic. ... Read More

Article

West Nile Virus Risk Factors Identified

December 23, 2009

A variety of environmental factors might be related to West Nile virus infections in horses, reported a Florida research team lead by Leslie M.V. Rios, PhD, from the Department of Entomology and Nematology at the University of Florida in Gainesville.... Read More

Article

New Equine Education Courtesy of Intervet/Schering-Plough and TheHorse.com

December 02, 2009

Horse owners looking for up-to-date information on parasites and drug resistance can find two new videos on TheHorse.com containing presentations made in Kentucky to a group of veterinarians, vet techs, and horse owners. These are sponsored b... Read More

Article

New West Nile Virus Vaccines for Horses Approved

November 23, 2009

New equine West Nile virus vaccines have been approved by the USDA. The vaccine line, called Vetera, is manufactured by Boehringer-Ingelheim, a privately held pharmaceutical company.

The Vetera line of West Nile virus vaccines... Read More

Article

Seventh Kentucky West Nile Virus Case Confirmed

October 15, 2009

The Kentucky State Veterinarian's office today noted that a seventh 2009 case of West Nile virus (WNV) has been confirmed.

An 18-month-old Quarter horse filly in ballard County had an onset of clinical signs of ataxia, lethargy, and... Read More

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Kentucky West Nile Virus Update: Sixth Case Confirmed

October 10, 2009

This morning (Oct. 10), the Kentucky State Veterinarian's office sent out an alert that the sixth equine case of West Nile virus had been confirmed.

The University of Kentucky's Livestock Disease Diagnostic Center confirmed the diagnosis... Read More

Article

West Nile Virus Returns to Italy

October 03, 2009

West Nile virus (WNV) has re-emerged in Italy, resulting in 28 equine clinical cases, including seven deaths as of last week, according to an epidemiological bulletin produced by the Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molis... Read More

Article

EEE and West Nile Virus Cases Continue to Climb

September 12, 2009

A total of 203 cases of Eastern equine encephalitis (EEE) has been reported in the United States this year according to the USDA's National Animal Health... Read More

Article

Mosquito-Borne Horse Diseases Update

September 06, 2009

Many equine health professionals are worried that because of the economic recession that's lasted more than a year, many horses are either not vaccinated or are under-vaccinated to protect them agasint common diseases.

According to the... Read More

Article

Virginia Logs First Equine WNV Case for 2009

September 05, 2009

The Virginia Department of Agriculture and Consumer Services (VDACS) has confirmed and announced Virginia's first positive case of West Nile virus (WNV) in a horse for 2009. The 16-year-old Tennessee Walking Horse mare was from Pittsylvania... Read More

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Mosquito-Borne Equine Diseases Prevalent on Both Coasts

September 03, 2009

As of Aug. 25, Florida led the United States in the number of documented equine cases of Eastern equine encephalitis (EEE), a mosquito-borne disease with mortality rates of around 90% in horses. Washington state officials had confirmed the most... Read More

Article

West Nile Virus: Washington Reports Highest Number of Cases

August 24, 2009

West Nile virus cases are popping up across the country, with Washington state reporting the highest number of equine cases.

As of Aug. 19, Washington animal health authorities had reported 12 equine cases. Other states reporting cases... Read More

Article

Japanese Encephalitis Vaccine Might Offer Some WNV Protection

August 18, 2009

Vaccination against Japanese encephalitis might mitigate West Nile virus (WNV) infection in some horses, said a group of researchers from Japan's National Institute of Animal Health... Read More

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West Nile Virus: 35 States Active, First Reported 2009 Horse Death in California

August 07, 2009

When West Nile virus (WNV) made its march from East Coast to West Coast starting in late 1999, California was one of the last states to be struck by the disease. In the past couple of years, California has one of the the highest rates... Read More

Article

West Nile Virus-Positive Mosquito Pool in 2009 Confirmed in Maryland

August 06, 2009

The Maryland Department of Agriculture (MDA) announces the first state detection of a West Nile virus (WNV) mosquito pool in Maryland in 2009. State Department of Health and Mental Hygiene (DHMH) laboratory results confirmed the presence of WNV in... Read More

Article

First 2009 Equine West Nile Virus Case Confirmed in Kentucky

August 05, 2009

Laboratory results received Tuesday (Aug. 4) from Murray State University's Breathitt Veterinary Center confirms the diagnosis of West Nile virus (WNV) having affected a yearling colt in Caldwell County, Kentucky. This is according to the... Read More