CBS News Chicago For the first time this year, a batch of mosquitoes tested positive for the West Nile Virus in Illinois. The North Shore Mosquito Abatement District said the batch was taken on ...

Health officials issue warning after batch of mosquitoes test positive for potentially fatal virus: 'Start taking precautions' first appeared on The Cool Down.

The North Shore Mosquito Abatement District said the batch was collected on Monday in a trap and tested positive for the virus on Thursday.