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. 2020 May 5;10:7571. doi: 10.1038/s41598-020-64463-w

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Neighbor-joining phylogenetic tree analysis of HIV-1 isolates in blood donors. Sequences from HIV-1 infected blood donors and references are respectively in red and black in the trees and boxes indicate relevant nodes with >70 bootstrap. (a) Phylogenetic tree analysis of gag sequences. (b) Phylogenetic tree analysis of PR-RT sequences. (c) Phylogenetic tree analysis of IN sequences. (d) Phylogenetic tree analysis of env sequences.