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. 2020 Jan 6;27:17. doi: 10.1186/s12929-019-0612-z

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© The Author(s). 2020

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 — Phylogenetic analysis of NP of H3N2 viruses from 1999 to 2017. Phylogenetic analysis of influenza virus NP gene (nucleotide 16 to 1473 bases) was performed using MEGA 7. NP genes from 79 randomly selected Taiwan clinical isolates, 14 reference strains, as well as the most dominant sequences in each year (1999–2018), was separated into 1 to 6 clades. Bootstrap values over 85 were labeled