A horse living on a farm in Vernon has been infected with the West Nile Virus.

The Oneida County Health Department says the yearling, one of several horses on the property, first displayed symptoms last week and a positive confirmation of West Nile was made earlier this week.

The horse is showing some improvement following treatment.

None of the other horses on the farm have shown signs of the disease.

Health Department officials says the affected animal has been vaccinated last year, but had not received a booster shot this year.

The Health Department says the affected horse has no connection to nearby Vernon Downs racetrack.