West Nile virus cases are ticking up in Utah in multiple counties and workers in various districts are trying to quell this problem. They have amped up efforts to keep people and vulnerable animals safe.
At the Salt Lake Mosquito Abatement District, for example, workers are utilizing an innovative technology to engage in high-tech battles against the bugs. Drones are hitting the skies to fight a deadly airborne pest — the mosquito — that can carry West Nile virus.
This is a modern day approach to fighting one of the world’s most ancient species.
A three-member team was out Friday morning in this aerial war against the bugs. District manager Ary Faraji said they are using an innovative technology that takes modern state of the art applications to kill mosquitoes, a species of which there are more than 3,600.
Mosquitoes date back hundreds of millions of years — the time when dinosaurs roamed the earth. It is a bit odd an insect that has a lifespan of less than 60 days can create so much attention and demand such mitigation efforts.
Sam Wilson, vector control technician for Salt Lake City Mosquito Abatement District, operates a drone to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
According to the Utah Department of Health, West Nile virus is carried by mosquitoes and commonly found in Africa, West Asia, and the Middle East.
The agency reported that the first case appeared in the U.S. in 1999 and in Utah in August 2003.
The virus can cause disease in humans, birds, horses, and some other mammals.
While most people do not develop any symptoms, those who do become ill experience headaches, body aches, joint pain and stomach disorders.
The fight against the virus
Fish swim inside a tank in the fish hatchery at the Salt Lake City Mosquito Abatement District building in Salt Lake City on Friday, Aug. 8, 2025. The Mosquitofish are free to people within the district to take for their ornamental ponds to be used to control mosquitoes, as Mosquitofish eat mosquito larvae in ponds. | Tess Crowley, Deseret News
Faraji said it is a constant battle. Mosquitoes are highly adaptive and hungry, adding that people on the higher benches of Salt Lake City seldom realize they are vulnerable.
In northern Utah, the virus in pools has been prevalent — although no human cases have been detected as of Aug. 2.
A drone touches down after spraying Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
But here is where the mosquitoes carrying the virus have been reported so far in various “pools” of where they gather:
Bear River, 17
Davis County, 11
Salt Lake County, 10
Utah County, 23
Year to date, as an example, the Davis County Mosquito Abatement District had tested 2,585 pools, with nearly 225,000 mosquitoes tested. Of those, 11 tested positive.
In the past week, in this intense surveillance effort, 367 pools of mosquitoes were examined that included 33,059 of the pests. Eight tested positive in Davis County.
There is no way to protect yourself 100% against the bite of a mosquito or possibly getting the virus, but there are some ways to mitigate it, according to the Centers for Disease Control and Prevention.
The agency said to use insect repellent, wear long-sleeved shirts and long pants and treat your clothing and gear with repellent when you are outdoors.
Reed Miles, left, and Sam Wilson, right, vector control technicians for Salt Lake City Mosquito Abatement District, and Brad Sorensen, aerial operations supervisor for Salt Lake City Mosquito Abatement District, center, operate drones to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Ben Knecht, vector control technician for Salt Lake City Mosquito Abatement District, cleans moss and transfers young fish, or fry, from the tank inside the fish hatchery at the Salt Lake City Mosquito Abatement District building in Salt Lake City on Friday, Aug. 8, 2025. Mosquitofish are offered for free to district residents for their ornamental ponds, as the fish eat mosquito larvae. | Tess Crowley, Deseret News
Ben Knecht, a vector control technician for the Salt Lake City Mosquito Abatement District, cleans moss and transfers young fish, or fry, from the tank inside the fish hatchery at the Salt Lake City Mosquito Abatement District building in Salt Lake City on Friday, Aug. 8, 2025. Mosquitofish are offered for free to district residents for their ornamental ponds, as the fish eat mosquito larvae. | Tess Crowley, Deseret News
Julia Shroyer, a vector control technician for the Salt Lake City Mosquito Abatement District, cleans moss and transfers young fish, or fry, from the tank inside the fish hatchery at the Salt Lake City Mosquito Abatement District building in Salt Lake City on Friday, Aug. 8, 2025. Mosquitofish are offered for free to district residents for their ornamental ponds, as the fish eat mosquito larvae. | Tess Crowley, Deseret News
Sam Wilson, left, and Reed Miles, right, vector control technicians for Salt Lake City Mosquito Abatement District, operate drones to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Brad Sorensen, aerial operations supervisor for Salt Lake City Mosquito Abatement District, carries buckets of Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, to be put into a drone which will be sprayed over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Brad Sorensen, aerial operations supervisor for Salt Lake City Mosquito Abatement District, pours Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, into a drone which will be sprayed over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Brad Sorensen, aerial operations supervisor for Salt Lake City Mosquito Abatement District, left, helps Reed Miles, vector control technician for Salt Lake City Mosquito Abatement District, right, operate a drone to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Reed Miles and Sam Wilson, vector control technicians for Salt Lake City Mosquito Abatement District, operate drones to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
A drone touches down after spraying Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
Sam Wilson, left, and Reed Miles, right, vector control technicians for Salt Lake City Mosquito Abatement District, operate drones to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News
A Salt Lake City Mosquito Abatement District employee operates a drone to spray Natular G30, a spinosad-based mosquito larvicide that controls mosquito larvae, over the wetland habitats near the Salt Lake City International Airport in Salt Lake City on Friday, Aug. 8, 2025. | Tess Crowley, Deseret News