An adult in Lafayette is the first human death of West Nile virus in Colorado this year, according to the Colorado Department of Public Health and Environment.

A bulletin from the Colorado Department of Public Health and Environment says an adult from Lafayette died after exposure to the virus, which is commonly transmitted by mosquitoes. The deaths is one of nine human cases of West Nile virus that have been confirmed in eight different Colorado counties so far this year.

DENVER ( KDVR) — The first human death of West Nile virus this year in Colorado was confirmed on Friday. In a press release to FOX31, the Colorado Department of Public Health and Environment and Boulder County Public Health said that the death was of an adult in Lafayette.