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.

Colorado has reported its first West Nile virus-related death of the year, as health officials confirm a Lafayette adult has died

In the latest weekly update of mosquito activity, Mosquito Control’s entomology lab reported that Culex tarsalis mosquitoes — the species most responsible for human transmission of West Nile virus — are active in some of the highest numbers recorded this early.