The Denver Department of Public Health and Environment announced Monday that the city's first human case of West Nile virus this season has been confirmed. Officials in Jefferson County have also confirmed their first human cases of the virus, with three people infected.

There have been over one dozen cases of West Nile in Colorado this year, which has resulted in one death .

According to the Colorado Department of Public Health and Environment, West Nile virus has been found in mosquitoes in eight of the 16 counties that have tested mosquitoes this year, including Adams, Arapahoe, Boulder, Broomfield, Denver, Jefferson, Larimer and Weld counties. In Fort Collins, the West Nile infection rate in mosquitoes is currently 11 times higher than the historical average, and four times

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