The minnows help to curtail the mosquito population in ponds and water by feeding on mosquito larvae and pupae before they develop into adult mosquitoes.
The City says there haven't been any reports of humans being infected with the virus in the area.
Those precautions include: the application of bug spray that contains DEET to exposed skin when you go outside, avoid going outside between peak mosquito biting time between dusk and dawn and eliminate standing water on your property, according to the release.
The Idaho Department of Health and Welfare said it is the first human case of locally-acquired WNV in northern Idaho since the virus was first detected in Idaho in 2003. Additional monitoring for mosquitoes will be done in the area where the mosquito pool was collected.
"While Utah County does not now have any confirmed human cases of West Nile Virus, this is a great reminder to residents of the importance of taking steps to protect themselves from mosquitoes", says Eric Edwards, MCHES, MPA, Deputy Director of the Utah County Health Department.
The announcement follows Oakland County Health Department's finding of a pool testing positive in July. "This is a good warning for all of us to take protective measures, including wearing insect repellent and reducing mosquito habitat, such as standing water, around our gardens and homes".
If you must go outdoors, wear a long-sleeved shirt and long trousers.
Now more than ever, it's important to keep in mind to bring insect repellent when heading outdoors.
Clean clogged roof gutters every year, and check storm drains, leaky faucets, and window wells.
Discard old tires, tin cans, ceramic pots or other containers that can hold water.
Install or fix screens on windows and doors to keep mosquitoes out of the home.
Flush ornamental fountains and birdbaths periodically. Spray thin clothing with repellent since mosquitoes can bite through it.