West Nile Virus (WNV)


Two Cases of EEE Found in June in South Carolina Horses

June 30, 2012

A 10-year-old horse from Horry County and a 4-month-old horse from Marion County recently tested positive.... Read More


N.Y. Senator Sponsors Free EEE Vaccine Clinics for Horses

June 26, 2012

Senator Patty Ritchie has announced she's sponsoring two no-cost EEE vaccine clinics for horses this week.... Read More


New Jersey Horse Euthanized after Contracting EEE

June 06, 2012

The mare received the first in a series of two planned EEE vaccinations from a private veterinarian in May.... Read More


Creepy Crawlies, Part 1: Mighty Mosquitoes

June 01, 2012

They might be small, but these flying fiends can spread some deadly diseases. ... Read More


Mass. State Officials: Vaccinate Horses Against WNV, EEE

May 13, 2012

Agricultural officials in Massachusetts advise horse owners to vaccinate against mosquito-borne diseases.... Read More


Pennsylvania's First Case of WNV in 2012 Confirmed

April 23, 2012

The first case of the season of WNV was reported last week in a horse in Northampton County, Pa.... Read More


Calif. State Veterinarian Recommends Equine WNV Vaccinations

April 20, 2012

In 2011, 15 horses in California were confirmed positive for WNV; four of those 15 were euthanized. ... Read More

West Nile Virus Fact sheet cover.


West Nile Virus (WNV)

April 18, 2012

West Nile Virus (WNV) causes a potentially fatal encephalomyelitis (inflammation of the brain and spinal cord)... Read More


International Equine Disease Report, Fourth Quarter 2011

April 09, 2012

Reported included diseases contagious equine metritis, equine influenza, strangles, and equine herpesvirus.... Read More


Horse Owners Urged to Ensure Vaccinations are Up to Date

April 07, 2012

Unvaccinated horses suffer severely when infected with either WNV or EEE, both transmitted by mosquitoes.... Read More


Weather Conditions "Ripe" for WNV Activity

March 28, 2012

West Nile is spread by mosquitoes, which thrive in the warm, wet conditions some have experienced recently.... Read More

Finally, Tanner says, “It’s important for everyone to remember that horses need to be members of a herd. Horses are always happier when other horses are around. They need to see a companion, whether it’s right beside them or across the aisle.”


UK Equine Showcase Presents Young Horse Research

March 22, 2012

The UK Equine Showcase held Jan. 20 focused on young horse heath, including infectious disease and deworming.... Read More


Take Steps Now to Prevent West Nile Virus in Horses

March 06, 2012

It's important that horse owners consult their vets about WNV prevention options before mosquito season.... Read More


Merck Unveils Websites to Help Owners Understand EPM, WNV

February 29, 2012

To help owners stay on top of EPM and WNV, Merck Animal Health has developed two new comprehensive websites.... Read More


West Nile Virus Vector Identified in U.K.

February 17, 2012

West Nile virus--while common in some global horse populations--has never been found in the U.K.... Read More


Researcher Working to Better Understand West Nile Virus

December 18, 2011

Bernard is examining interactions between the body, the West Nile virus, and even the mosquito saliva.... Read More


Equine Infectious Disease Control in Developing Countries

December 17, 2011

Disease control in developing countries must be cost-effective, practical, and acceptable to livestock owners.... Read More


Outbreak Alert Helps in Fighting Equine Disease

December 09, 2011

Since June 2011, the program has provided notification of more than 500 equine disease reports to subscribers.... Read More


New Gene Chip Could Help Detect, Treat WNV in Horses

December 08, 2011

Researchers developed a "brain and immunity chip" to characterize molecular changes in the equine brain.... Read More


New Jersey Reports First West Nile Case of Year

October 13, 2011

An unvaccinated 11-year-old mare from Monmouth County, N.J., tested positive for WNV on Oct. 12.... Read More


USDA Tracking Equine EEE, WNV Case Numbers

September 28, 2011

The USDA/APHIS is keeping a running tally of the number of confirmed cases of WNV, EEE, and WEE in the U.S.... Read More


New WNV Cases in California, EEE Cases in Wisconsin

September 19, 2011

Seven California horses have now tested positive for WNV, and an EEE case has been detected in Wisconsin.... Read More


Reminder to Vaccinate Horses against Mosquito-Borne Diseases

September 19, 2011

Pfizer Animal Health is encouraging horse owners and veterinarians to follow the AAEP vaccination guidelines.... Read More


Kentucky Horse Tests Positive for WNV

September 02, 2011

A 6-year-old Standardbred mare from Fleming County, Kentucky, tested positive for West Nile virus Sept. 2.... Read More


West Nile Virus Confirmed in Texas Horses

August 18, 2011

The 2011 mosquito-borne disease season is in full swing as two Texas horses have tested positive for WNV.... Read More