West Nile virus has been detected in Grant County -- the first positive sample in the county this year and the second in the state, health officials said.

The mosquito sample was collected by the Grant County Mosquito Control District No. 1 on Aug. 29 in an area described as the "western sand dunes" southwest of Moses Lake, officials said.

No humans or animals have tested positive for West Nile virus this year, the state Department of Health said.

Officials say people in Grant County should take steps to prevent getting bitten by mosquitoes, even though there's only a month or so left of mosquito season.