Published in Medical Letter on the CDC and FDA, April 6th, 2003
There's no good way to predict, as the deadly virus is from a family that's notoriously fickle. But during last year's record-setting epidemic - more than 4,000 people became ill and 274 died - only a handful of states escaped human illness. Even some of those harbored infected mosquitoes and birds.
And no, the harsh winter in much of the country probably won't lead to a reprieve. Many mosquitoes can survive the cold by hiding out in places such as sewers, ready to start spreading infection once it's warm enough to re-emerge.
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