Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Sep 19;3(5):e00462-18. doi: 10.1128/mSphereDirect.00462-18

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2018 Xiao et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

PMC Copyright notice

FIG 2 — Phylogenetic trees of unique HA segments of human H7N9 in China from 2013 to 2017 and consensus HA sequences (SNP frequency, >50%) of our samples. Approximately maximum-likelihood midpoint-rooted phylogenetic trees with Shimodaira-Hasegawa (SH) values are presented. Purple, reference genome; green, our samples in “sample number_year_outcome” format; blue, viruses in the Pearl River Delta HA lineage; red, viruses in the Yangtze River Delta HA lineage. See Fig. S1 for an expanded form of this tree, in which individual viral taxa are labeled by strain name.