West Nile-positive mosquitoes have been found in three Las Vegas-area ZIP codes, and health officials are telling residents to check their yards, pools, and patios for standing water.
The Southern Nevada Health District first identified positive mosquitoes collected in the 89121 ZIP code as part of its routine mosquito surveillance program.
The agency later said mosquitoes also tested positive in 89169 and 89139. FOX5 Vegas reported that the later detections were in the central valley and Enterprise areas…