Most West Nile cases in Colorado happen between July and September, though mosquitoes can live until the first snow or hard ...

The state’s West Nile virus season appears to be ahead of schedule this year, after two more Colorado counties detected the ...

Boulder County Public Health and Weld County both confirmed within two days that there have been the first positive tests of ...

Mosquitoes carrying the virus were first identified in Colorado in 2003. That year resulted in the most human cases of West ...

Weld County had 15 reported cases of human West Nile virus, according to the website. The year before reached 52 cases.

DENVER ( KDVR) — The first trace of the West Nile virus this season was found in Denver through a positive mosquito sample.

Mosquitoes are a familiar nuisance each summer when you are trying to enjoy the outdoors. Unfortunately, some mosquitoes can ...

The mosquitoes infected with the virus were discovered in Nesconset on July 1, Suffolk County health officials said ...

Shasta County Mosquito and Vector Control found 2025's first mosquitoes carrying West Nile Virus in the county. Here's how to reduce bites.

Colorado recorded 76 West Nile cases and zero deaths last year, according to health department data. But the state saw 634 cases and 51 deaths from the virus in 2023 and 207 cases and 20 deaths in ...