The Pueblo Department of Public Health and Environment (PDPHE) has confirmed the first positive human case of West Nile virus. West Nile virus develops in the human body 2 to 14 days after a bite from an infected mosquito.

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.

An individual in Pueblo County was recently hospitalized with West Nile virus. Here's what to know about the illness and how to stay safe.