NAMPA, Idaho (AP) — Officials say mosquitoes in the cities of Nampa and Payette have tested positive for West Nile virus.

The Idaho Press-Tribune reports that the infected mosquitoes in Nampa were from a trap collected Tuesday south of Lake Lowell in the Deer Flat National Wildlife Refuge area. The Payette mosquitoes were collected Monday in the Little Willow area. Mosquito abatement efforts have been applied to the affected areas.

West Nile is transmitted to humans and animals by the bite of an infected mosquito. Flu-like symptoms can occur and are usually mild, though it can be fatal. Officials recommend people wear bug spray and remove standing water around homes or in yards.