GILLETTE, Wyo. (AP) — Officials say West Nile virus has been confirmed in two horses in northeast Wyoming.

The Gillette News Record reports Dr. Marshall Kohr of Animal Medical Center of Wyoming says the horses in Campbell County tested positive this week and a third horse is being evaluated.

Kohr says the three horses are from different parts of the county and were observed as being "wobbly on their feet." He says one horse has died but he hopes the other two will recover.

Kohr says the virus is preventable with a vaccine. Horses, humans and some birds are most susceptible to the virus.

The Animal Medical Center recommends that horses get vaccinated every year.

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Information from: The Gillette (Wyo.) News Record, http://www.gillettenewsrecord.com