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. 2015 May 27;10(5):e0127696. doi: 10.1371/journal.pone.0127696

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© 2015 Han et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — The tree was midpoint rooted. Horizontal branch lengths are drawn to scale (the scale bar represents 0.02 nucleotide substitution per site). Bracket separation is for clarity only. Numbers at the nodes indicate the bootstraps in which the cluster to the right was supported by 60% and higher. Markers in different shapes at the ends of the horizontal branch represent different subtypes to which the sequences belong. Triangle represents the subtype CRF07_BC, square represents the subtype CRF01_AE, rhombus represents the subtype G, and circle represents the subtype B (B represented by black round while Thai-B represented by dark red circle).