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Christopher Xamplas, a vector biologist with the North Shore Mosquito Abatement District, holds two gravid traps (female mosquito traps) in Northfield on July 14, 2017.
Jose M. Osorio / Chicago Tribune
Christopher Xamplas, a vector biologist with the North Shore Mosquito Abatement District, holds two gravid traps (female mosquito traps) in Northfield on July 14, 2017.
Chicago Tribune
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North Shore Mosquito Abatement District look for mosquito larvae or any signs of mosquitos breeding near Crow Island Woods in Winnetka on July 14, 2017. Researchers and health officials say that heavy rains and flooding this week could cause an increase in nuisance mosquitos.