Storms Bring Mosquitoes

CHICAGO (AP) -- The heavy rains that hit northern Illinois last week are expected to bring another unpleasant side-effect -- more mosquitoes.

An environmental specialist with the Cook County Department of Public Health says residents can expect to see more of the bugs.

But there's one bright side: they aren't expected to cause an increase in West Nile.

Experts say the bugs involved are "floodwater" mosquitoes (Aedes vexans), while the West Nile virus is typically associated with Culex mosquitoes, which thrive in hot, dry weather.

The downpours may actually have reduced the number of Culex mosquitoes because it likely washed away the stagnant water where they breed.

Twenty-three Illinois counties have reported West Nile cases this year.

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