Knox Co. spraying mosquitoes in West Nile positive communities
Knox County Health Department crews will spray a record number of areas for mosquitoes within the next week to help fight the spread of West Nile Virus.
Nine out of 11 of the county's surveillance sites turned up mosquitoes that tested positive for West Niles.
Health officials emphasize that it's not unusual to find West Nile mosquitoes this time of year, but because of the high number, the department will add three more surveillance sites.