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. 2019 Sep 2;19:762. doi: 10.1186/s12879-019-4145-6

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Hypothetical lineage for the origin of the human H5N6 virus in Fujian Province, China. The ovals represent virus particles and horizontal bars represent the eight gene segments (from top to bottom: PB2, PB1, PA, HA, NP, NA, MP, NA). The broken oval represent a genetic reassortment virus