Humans, birds, and mosquitoes propelled the spread of West Nile Virus in the US from coast to coast in less than four years. Various secondary cycles played a part as well. (see West Nile: The Virus that Came to Stay)

Map adapted from Centers for Disease Control and Prevention data; other information compiled by Janet Ginsburg (

Please indicate on a 1 - 5 scale how strongly you would recommend this article to your colleagues?
Not recommended
Highly recommended
Please register your vote

Interested in reading more?

Magaizne Cover

Become a Member of

Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!