Image: Phylogenetic tree of West Nile viruses
Phylogenetic_tree_of_West_Nile_viruses.gif (628 × 579 pixels, file size: 68 KB, MIME type: image/gif)
Description: Phylogenetic tree of West Nile viruses.
Title: Phylogenetic tree of West Nile viruses
Credit: http://cid.oxfordjournals.org/content/45/8/1039.long#F5
Author: Centers for Disease Control and Infection
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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