Blood tests have confirmed that the first two horses this year have been infected with the West Nile Virus. The Ohio Department of Agriculture says the two infected horses from Brown and Stark counties had not been fully vaccinated. They were euthanized after their health deteriorated. More than 600 horses were infected with the disease last year. Symptoms in infected horses include listlessness, stumbling, lack of coordination, partial paralysis and death. Horse owners can take precautions, such as clearing standing water from near barns, covering stalls with mesh screens, turning stable lights off at night and using fans to repel mosquitoes.