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Rapid Transmission and Divergence of Vancomycin-Resistant Enterococcus faecium Sequence Type 80, China
Liqiang Li
1, Xingwei Wang
1, Yanyu Xiao, Bing Fan, Jiehong Wei, Jie Zhou, Zetian Lai, Yanpeng Zhang, Hongmei Mo, Li Zhang, Dixian Luo, Dayong Gu, Shucai Yang, Yidi Wang, Jiuxin Qu

, and
Shenzhen Pathogen Infection Research Alliance
Author affiliation: National Clinical Research Center for Infectious Diseases, Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China (L. Li, X. Wang, Y. Xiao, Y. Wang, J. Qu); Shenzhen Institute of Translational Medicine, First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen (B. Fan, Y. Zhang, D. Gu); Medical Laboratory of the Third Affiliated Hospital of Shenzhen University, Shenzhen (J. Wei, H. Mo); Pingshan Hospital, Southern Medical University, Pingshan District People’s Hospital of Shenzhen, Shenzhen (J. Zhou, L. Zhang, S. Yang); Shenzhen Nanshan People's Hospital, Shenzhen (Z. Lai, D. Luo); Shenzhen University Medical School, Shenzhen (Z. Lai, D. Luo)
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Figure 1

Figure 1. Evolution and variation of SC11 inferred from core genome SNPs during rapid transmission and divergence of vancomycin-resistant Enterococcus faecium ST80, China. Graphs shows reconstructed tree from core genome SNPs (left) among all SC11 isolates (n = 235) using strain SZYSC_GYSVRE003 (GenBank accession no. GCA_037475005.1) as reference. Hospital sources of isolates from Shenzhen ST80 and its variant, and SC11-pop II isolates are indicated (1, 2, and 3) next to the tree. The heatmap (right) shows pairwise SNP distance matrix indicating diversity of SC11 lineage presented in the form of symmetry in the bottom left and top right. Cells in the heatmap are colored to show SNP distance in a graded gradient. Red lines indicate large SNP distances and correspond to SZYSC_23VRE019 in the tree. pop, population; SC, sequence cluster; SNP, single-nucleotide polymorphism; ST, sequence type.
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