The first case of equine West Nile virus in Colorado this year has been diagnosed in a horse in Larimer County on the Front Range. According to a release from the state Department of Agriculture, the case was confirmed by Colorado State University’s Veterinary Diagnostic Laboratory in Fort Collins on August 2nd. West Nile virus is spread by mosquitoes and can be contracted by horses, human beings, birds, and some other animals. The state of Utah recently confirmed its first case as well, in a horse in Carbon County in the north-central part of the state.