Zoos Tracking West Nile Virus It has killed more than 100 Americans so far -- and the West Nile virus is taking a similar toll at U.S. zoos. Many exotic animals are on the casualty list, and experts fear the mosquito-borne illness will strike a species already in danger of extinction. For Morning Edition, NPR's John Nielsen visits Chicago's Lincoln Park Zoo to find out more.
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Zoos Tracking West Nile Virus

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Zoos Tracking West Nile Virus

Zoos Tracking West Nile Virus

Zoos Tracking West Nile Virus

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  • <iframe src="https://www.npr.org/player/embed/1150958/150958" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

It has killed more than 100 Americans so far — and the West Nile virus is taking a similar toll at U.S. zoos. Many exotic animals are on the casualty list, and experts fear the mosquito-borne illness will strike a species already in danger of extinction. For Morning Edition, NPR's John Nielsen visits Chicago's Lincoln Park Zoo to find out more.

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