Volume 12, Number 7—July 2006
Letter
H5N1 Influenza Virus, Domestic Birds, Western Siberia, Russia
Figure
![](/eid/images/05-1338-F1.gif)
Figure. Phylogenetic tree of H5 hemagglutinin genes of influenza A viruses. The 3 H5 western Siberian 2005 viruses isolated in this study are shaded. Phylogenetic analysis was performed by the neighbor-joining method with the Molecular Evolutionary Genetic Analysis 2 program (Center for Evolutionary Functional Genomics, Tempe, AZ, USA). Scale bar indicates relative value of distance in matrix normalized units. Numbers indicate tree divarication.
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