West Virginia Warns of Equine Influenza in State

Find My Horses:  West Virginia Warns of Equine Influenza in State

Equus Magazine

The West Virginia Department of Agriculture is advising horse owners that equine influenza virus (EIV) may be present in the state.

On Thursday, the Department warned owners in Jackson and adjoining counties that they might want to avoid moving their horses following what appears to be an outbreak of equine influenza virus (EIV).

(Note: Jackson County is in the western part of the state, and touches the border with Ohio. Interstate highway I-77 runs through the county; the north-south highway connects Cleveland, Ohio with Columbia, South Carolina.)

The state issued the warning, but advised horse owners to remain calm.

“This is not an emergency situation. Horses may get sick, but we expect them to make full recoveries within two or three weeks,” said Commissioner of Agriculture Walt Helmick. “However, we are seeing multiple reports of symptomatic horses and EIV and we wanted to make the public aware.”


An open-mouth cough is a major symptom of equine influenza.(jianfongyaw photo)

Acting State Veterinarian Vanessa Harper said she has been told that testing has confirmed one horse with EIV. “Equine influenza is a very contagious disease, so similar symptoms in other horses point to the same illness,” said Dr. Harper.

Those symptoms include fever, malaise and respiratory symptoms, such as nasal discharge. She also noted that horses under the age of five are more susceptible to the virus than older ones, and that vaccines are available that can help lessen the severity of an infection. Horse owners should consult their regular veterinarian about vaccines, she said.

The likely source of this disease was a horse show held around the first of the month in Jackson County. The facility where the show took place has been decontaminated since then.

Horse events have been cancelled for the time being in Jackson County, according to the WVU Extension office there. The Extension Service is also encouraging horse owners to keep their horses on the farm and to step up biosecurity practices until the outbreak runs its course.

Dr. Harper added that this outbreak is a perfect example of why organizers of animal shows should keep good records on all the animals that take part in shows. “A list allows owners to be notified that their livestock may have been exposed to a disease. That way they can take the appropriate steps to care for their animals,” Dr. Harper said.

The statement did not give an exact location for any affected horses. A news video posted by StateJournal.com showed the disinfection process at the showgrounds and suggested that a number of horses have been reported ill from the virus.

About equine influenza virus: EIV is a common but highly contagious virus. Fever and coughing, and an eventual nasal discharge are common symptoms. Highly effective vaccines are available to horses in the United States, and good biosecurity practices should be effective in preventing the spread of the disease any farther. It is found almost everywhere on Earth, with the exception of Iceland, New Zealand and Australia, where an outbreak originating with an imported horse caused havoc in 2007. In 1872, equine influenza affected thousands of horses in the United States and cities came to a standstill until the horses recovered.

To learn more:

Downloadable OIE special report document on EIV. (World Organization for Animal Health)

State Journal news report and video of fairgrounds cleaning activity

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