Colorado health officials diagnosed the West Nile Virus in a La Plata County resident Monday, marking the state’s first human case of the virus this year. According to a Monday news release from the Colorado Department of Public Health and Environment, officials have found West Nile in mosquitos in seven other counties throughout Colorado so far this season. Officials identified the mosquito-borne virus in Arapahoe, Boulder, Delta, Denver, Larimer, Pueblo and Weld counties, but those areas have not documented any human cases yet. “Mosquito populations are at historic levels in some parts of the state due to the high rainfall this year,” Monday’s news release stated.