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.

Cases of West Nile virus are spreading nationwide, with deaths reported in Colorado and Arizona. What about Florida?

Colorado recorded its first human death of the year from West Nile virus on Friday. The case was in an adult from Lafayette. That's according to the state health department and Boulder County Public Health, in a press release.