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Volume 29, Number 10—October 2023
Dispatch

Expansion of Invasive Group A Streptococcus M1UK Lineage in Active Bacterial Core Surveillance, United States, 2019‒2021

Yuan LiComments to Author , Joy Rivers, Saundra Mathis, Zhongya Li, Sopio Chochua, Benjamin J. Metcalf, Bernard Beall, Jennifer Onukwube, Christopher J. Gregory, and Lesley McGee
Author affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Figure 2

Genomic clusters of M1UK invasive group A Streptococcus disease, United States, 2015–2021. Core-genome phylogenetic tree of 86 M1UK invasive group A Streptococcus disease isolates and the reference M1 genome MGAS5005 was based on 462 core single-nucleotide variant sites generated by kSNP3.0 software (9). Tip colors indicate 9 groups of genomically closely related isolates (genomic clusters). Key shows total number of M1UK isolates in each cluster. Scale bar indicates expected nucleotide substitutions per site.

Figure 2. Genomic clusters of M1UK invasive group A Streptococcus disease, United States, 2015–2021. Core-genome phylogenetic tree of 86 M1UK invasive group A Streptococcus disease isolates and the reference M1 genome MGAS5005 was based on 462 core single-nucleotide variant sites generated by kSNP3.0 software (9). Tip colors indicate 9 groups of genomically closely related isolates (genomic clusters). Key shows total number of M1UK isolates in each cluster. Scale bar indicates expected nucleotide substitutions per site.

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References
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