The Allegheny County Health Department on Monday confirmed that additional mosquito samples have tested positive for West Nile Virus. The health department will treat areas for mosquitoes in the communities of Hazelwood,

The person who died was identified as an older adult with underlying health conditions. So far this year, 17 human cases of West Nile have been confirmed in the county.

A mosquito sample collected last week on North Military Highway in Norfolk has tested positive for the West Nile virus, the first such positive test in the city this season, according to the Norfolk Department of Public Health.