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Letter

An outbreak of a novel recombinant Coxsackievirus A4 in a kindergarten, Shandong province, China, 2021

ORCID Icon, , , , , , , , , , , & ORCID Icon show all
Pages 2207-2210 | Received 05 Jul 2022, Accepted 14 Aug 2022, Published online: 21 Sep 2022

Figures & data

Figure 1. (A) Phylogenetic analysis of 11 full-length CV-A4 genomes from the kindergarten outbreak and reference strains available from GenBank. Font colour in the phylogenetic tree represents the collection date of the CV-A4 strains. Maximum likelihood trees in this study were estimated using RAxML (version 8.1.6) [Citation14] under the GTRGAMMA nucleotide substitution model with 1000 bootstrap replicates. The solid red circle represents the Chinese CV-A4 genomes identified by our laboratory, and the open red circle represents the Chinese CV-A4 genomes described by other laboratories. (B) Sequence identity between CV-A4 genomes from the kindergarten outbreak (exemplified by TA001K) and its most closely related strains. Similarity comparison of the potential recombination event in the TA001K genome was performed using Simplot [Citation15], with a window size of 200 bp and a step size of 20 bp. The breakpoints were defined by RDP4 [Citation16].

Figure 1. (A) Phylogenetic analysis of 11 full-length CV-A4 genomes from the kindergarten outbreak and reference strains available from GenBank. Font colour in the phylogenetic tree represents the collection date of the CV-A4 strains. Maximum likelihood trees in this study were estimated using RAxML (version 8.1.6) [Citation14] under the GTRGAMMA nucleotide substitution model with 1000 bootstrap replicates. The solid red circle represents the Chinese CV-A4 genomes identified by our laboratory, and the open red circle represents the Chinese CV-A4 genomes described by other laboratories. (B) Sequence identity between CV-A4 genomes from the kindergarten outbreak (exemplified by TA001K) and its most closely related strains. Similarity comparison of the potential recombination event in the TA001K genome was performed using Simplot [Citation15], with a window size of 200 bp and a step size of 20 bp. The breakpoints were defined by RDP4 [Citation16].
Supplemental material

Supplemental Material

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