Laramie Finds West Nile Virus In Local Mosquito Samples

Three mosquito samples collected over the past week from just outside of Laramie have tested positive for West Nile Virus.

That's according to a news release from the City of Laramie.

According to the release, the mosquitoes were collected by surveillance traps being monitored by the Mosquito Control division of the City of Laramie.

What Are The Symptoms Of West Nile Virus?

While most people infected with the West Nile Virus don't get sick, the federal Centers for Disease Control says "about 1 in 5 people who are infected develop a fever and other symptoms. About 1 out of 150 infected people develop a serious, sometimes fatal, illness."

Despite the positive tests, the City of Laramie News release says the overall danger so far is low: ""The rating of the Risk of West Nile virus infection continues to be rated at LEVEL 1 (LOW RISK) based on the Centers for Disease Control (CDC) guidelines for a phased response to WNV surveillance data. Currently virus activity is categorized as “limited to sporadic activity in local mosquitoes and birds”. City of Laramie Mosquito Technicians have tested a total of 14 pooled samples of Culex tarsalis mosquitoes so far in the 2025 mosquito season. Culex tarsalis is the known vector of WNV in the region. No avian, equine, or human cases have been reported at this time in Albany County. The Wyoming Department of Health has been notified of these positive mosquito pools (Albany County)."

The City of Laramie has announced it will be spraying Dibrom to control adult mosquitoes near the city this week.