Northwest Mosquito Abatement lab teams track mosquito swarms after heavy rains
(Chicago Tribune Religion News)

Mosquitoes have been coming out in droves after recent heavy rains, and crews from the Northwest Mosquito Abatement lab are working to track the increase in insects and monitor for West Nile virus. The Northwest Mosquito Abatement District is about 242 square miles, according to Assistant Director and Entomologist Patrick Irwin.