The city reported that it had discovered its first West Nile-positive mosquito for the 2025 season in early July. The Daily Camera reported the news, saying that while West Nile virus season was starting early in Colorado's Front Range, experts weren't certain that this would translate into a heavy season for infections.

All Colorado counties have reported at least one human case of West Nile virus since 2003. No one knows how many people have had the virus, because most don’t get sick. Related Articles

Colorado's first case of West Nile virus in 2023 has surfaced in La Plata County, according to a Monday news release from the Colorado Department of Public Health and Environment

Two people in Adams County have tested positive for West Nile Virus, which has seen a significant increase in mosquitoes in the state. Dr. Lindsey Fish, Internal Medicine with Urgent Care at Denver Health,

In Arizona, mosquito-borne viruses are most likely spread from May through October during the peak of mosquito activity.

The type of mosquito which carries the West Nile Virus is flourishing, thanks to Colorado’s unusually wet spring and early summer which was followed by warm temperatures. And on the eve of one ...

The U.S. Centers for Disease Control and Prevention, which tracks such cases across the country, had reported 47 West Nile virus human disease cases this year as of July 18. The agency showed more ...