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. 2014 Oct 29;1(2-3):133–140. doi: 10.1016/j.ebiom.2014.10.015

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© 2014 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).

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Fig. 3 — Phylogenetic tree generated by neighbor-joining analysis of genetic distances in the entire H gene. Tree was constructed with 28 reference strains from all genotypes recommended by the WHO. Vietnamese strains identified in this study are indicated in blue. WHO reference strains are indicated in italics. Bootstrap values of > 60% are shown at the branch nodes.