West Nile Virus (WNV)

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AAEP Convention 2005: Vaccine Efficacy and Controversies

February 01, 2006

"There are a huge number of (vaccine) choices out there and it's hard sometimes to see our way through the forest," said Julia Wilson, DVM, Dipl. ACVIM, associate professor in Veterinary Population Medicine at the University of Minnesota. "What... Read More

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DNA Vaccine Protects Foals from West Nile Virus

January 19, 2006

Scientists recently showed that the West Nile virus (WNV) DNA vaccine, which is licensed but not yet commercially available, should protect foals from the virus regardless of residual antibodies received at birth from their dams that often... Read More

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Scientists Test Chimera Vaccine

January 16, 2006

A new research model has been developed and successfully used to test a new type of vaccine against West Nile virus (WNV). Maureen Long, DVM, PhD, Dipl. ACVIM, assistant professor at the University of Florida, proved a chimera WNV vaccine was... Read More

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Katrina Increases Gulf Coast Mosquito Population; WNV Outbreak Not Expected

November 01, 2005

The mosquito population of the Gulf Coast's hurricane-affected areas is expected to increase at a staggering rate, according to Joe Conlon, spokesman of the American Mosquito Control Association (AMCA). However, he added that the possibility of ... Read More

Article

EEE Confirmed in Michigan Horses and Deer

October 14, 2005

Four cases of Eastern equine encephalitis (EEE) were recently confirmed in two neighboring west Michigan counties, and another in the northeast corner of the Michigan's Lower Peninsula. The disease was also confirmed in three of seven... Read More

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Vets Watch for Hurricane-Related Illnesses

October 12, 2005

With water pooling in places that it normally doesn't and sharp debris all around, horse owners can't help but wonder if conditions left by Hurricanes Katrina and Rita will cause an increase in the reports of illnesses such as tetanus,... Read More

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Study Might Link American Robins To West Nile Virus

October 01, 2005

A recent DNA study of the blood consumed by 300 mosquitoes in Connecticut over the past three years found that 40% fed on American robins, while only 1% fed on American crows, a known host of West Nile virus (WNV). Theodore Andreadis, MS, PhD,... Read More

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First Equine WNV Case Reported in Virginia

September 22, 2005

Virginia health officials confirmed the state’s first case of equine West Nile virus (WNV) on Sept. 19. The affected 12-year-old Quarter Horse gelding, located in Albemarle County, is currently recovering. The owners had been told when they... Read More

Article

Katrina Increases Mosquito Population

September 19, 2005

Katrina Increases Mosquito Population; WNV Outbreak Not Expected

The mosquito population of the Hurricane Katrina-affected areas is expected to increase at a staggering rate, according to Joe Conlon, American Mosquito Control Association... Read More

Article

Three Additional WNV Kentucky Cases

September 16, 2005

Three new cases of West Nile virus (WNV) were reported by the Kentucky Department of Agriculture as of Aug. 29.

In Fayette County a 2-year-old Hanovarian filly had onset of symptoms on Sept. 15. She had not been vaccinated, and she is... Read More

Article

Death and Destruction

September 01, 2005

West Nile virus (WNV) was first identified in October 1999 because of an alert zoo veterinarian in New York. The epicenter in 2005, as in 2004, is expected to be California. In six short years, a disease that had never been seen before in North... Read More

Article

West Nile Virus DNA Vaccine Approved for Horses

September 01, 2005

Commercial vaccines leapt toward state-of-the-art on July 8 when the USDA granted a license for the world's first DNA vaccine for any species. This equine vaccine springs from more than four years of collaborative research between Fort Dodge Animal... Read More

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WNV Patients Have a Long Road Ahead

September 01, 2005

Maureen Long, DVM, PhD, Dipl. ACVIM, assistant professor of large animal veterinary medicine at the the University of Florida, knows of at least four horses that appeared to make full recoveries from West Nile virus (WNV) before getting sick... Read More

Article

WNV: Where Are We Today?

September 01, 2005

Let's face it--we were getting comfortable, perhaps complacent, in our twice-a-year visits from our horse's veterinarians for inoculations against the old, familiar diseases...Eastern and Western equine encephalitis, influenza, rabies... Read More

Article

West Nile Recovery x 3

September 01, 2005

One day, Marla Gilvin heard whinnying uncharacteristic from her 5-year-old Kentucky Mountain mare Cocoa Rain. “I went out to see what she was doing and called her to the barn,” Gilvin recalls. “She didn’t move. Her 4-month-old foal was running... Read More

Article

Study Might Link American Robins to West Nile Virus

August 26, 2005

A recent DNA study of the blood consumed by 300 mosquitoes in Connecticut over the past three years found that 40% of them fed on American robins (Turdus migratorius), while only 1% fed on American crows (Corvus brachyrhynchos)... Read More

Article

WNV Transmission Between Co-Feeding Mosquitoes

August 25, 2005

More than just birds and mosquitoes could play a key role in the spread of West Nile virus (WNV). Scientists recently determined that an uninfected mosquito can get WNV from an infected mosquito when feeding directly next to it on an uninfected... Read More

Article

Practical Mosquito Control

August 09, 2005

In addition to vaccination, mosquito control is critical in protecting your horses against WNV. Here's quick review on controlling mosquito populations in your barn:

  • Eliminate areas of standing water through improved drainage, or... Read More

Article

EEE and WNV Detected in New Hampshire

August 08, 2005

The New Hampshire Department of Health and Human Services (DHHS), Division of Public Health Services announced Friday (Aug. 5) that it has confirmed the presence of West Nile virus (WNV) in a bird found in Pembroke, N.H. Lab results provided by... Read More

Article

West Nile Virus Human Vaccine on the Way

August 03, 2005

Horses had a West Nile virus (WNV) vaccine within roughly two years of the first discovery of the virus in the Western Hemisphere. It has taken a little longer to get a WNV human vaccine through the pipeline and to the American public. A... Read More

Article

California: Three 2005 Equine WNV Cases

August 01, 2005

As of July 5, three cases of West Nile virus (WNV) have been detected in California horses. All three cases are recovering.

The first case was reported on June 1 in Plumas County. The second and third cases were from Sonoma and Kern Countie... Read More

Article

Farnam Introduces Granular Larvacide for Mosquito Control

July 26, 2005

"The most important step any property owner can take to control mosquito populations is to remove all potential sources of stagnant water in which mosquitoes might breed," the USDA advises. Unfortunately, many necessary water sources cannot be... Read More

Article

The New West Nile Virus DNA Vaccine Explained

July 20, 2005

Commercial vaccines leapt toward state-of-the-art on July 8 when the USDA granted a license for the world's first DNA vaccine for any species. Horses will benefit from this accomplishment that springs from more than four years of collaborative... Read More

Article

Fort Dodge Receives Approval of West Nile Virus DNA Vaccine

July 18, 2005

Fort Dodge Animal Health, a division of Wyeth, today announced the licensure of West Nile-Innovator DNA, a novel vaccine for horses to aid in the prevention of viremia caused by the potentially deadly West Nile virus (WNV). Fort Dodge's... Read More

Article

West Nile Virus Confirmed in Two Oklahoma Horses

July 11, 2005

The Oklahoma State Department of Health (OSDH) confirmed on July 7 that two horses in the southwest region of the state had tested positive for West Nile virus (WNV) The equine cases were reported in Comanche and Washita counties.

"Give... Read More