10 States Where Rare and Exotic Diseases Lurk

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Credit: AP Images

Bugging out

In the mid-1900s, health experts said the U.S. had won the war on infectious diseases, thanks in part to vaccination and stepped-up sanitation.

Don't relax just yet. Climate changes, uneven vaccination, globe-trotting travelers, and other factors have contributed to a resurgence of some types of bacteria, viruses, and disease-carrying insects.

Here are 10 U.S. states that have experienced outbreaks of a rare or exotic disease. Some, like West Nile, are relative newcomers; others, like dengue fever, are old scourges making a comeback.

Next: Arizona