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Grand River Mosquito Control District

A Disease-Carrying Mosquito Has Landed in the Rocky Mountains Where It Historically Couldn’t Survive

The Aedes aegypti mosquito that can carry dengue was thought to be too reliant on a hot and wet climate to survive in the Mountain West. But now, a population is thriving in Western Colorado.

Story by Erin Douglas, photos by Isabella Escobedo

Hannah Livesay, biologist at the Grand River Mosquito Control District, points out the characteristic white markings of an Aedes aegypti mosquito shown under a microscope at her lab in Grand Junction, Colo.

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