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. 2012 Nov 12;9:266. doi: 10.1186/1743-422X-9-266

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Copyright ©2012 Valiakos et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Phylogenetic tree of the 270-nt E genomic region. Phylogenetic analysis based on a 270-nt E genomic region of 16 West Nile virus strains (including strain of the present study, shown on top) was performed by using MEGA version 5. GenBank accession numbers and geographic origins of strains are shown. Neighbor-joining tree was constructed from a difference matrix employing the Kimura 2-parameter correction. One thousand bootstrap pseudo-replicates were used to test the branching (shown as percentages).