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Volume 29, Number 5—May 2023
Research Letter

Norovirus GII.3[P25] in Patients and Produce, Chanthaburi Province, Thailand, 2022

Watchaporn Chuchaona, Sarawut Khongwichit, Woraya Luang-on, Sompong Vongpunsawad, and Yong PoovorawanComments to Author 
Author affiliations: Chulalongkorn University, Bangkok, Thailand (W. Chuchaona, S. Khongwichit, S. Vongpunsawad, Y. Poovorawan); Ministry of Public Health, Nonthaburi, Thailand (W. Luang-on)

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Figure

Phylogenetic analysis of norovirus strains, Chanthaburi Province, Thailand, 2022. A) Partial sequence of the RNA-dependent RNA polymerase gene (187 bp). B) Complete sequence of the capsid gene (1,644 bp). Strains identified in this study (black circles) were compared with the reference (bold) and global strains. GenBank accession numbers for strains are indicated in parentheses. Trees were generated by using the maximum-likelihood method with 1,000 bootstrap replicates implemented in MEGA 11 (https://www.megasoftware.net). Bootstrap values >70 are indicated at the nodes. Only strains of sufficient nucleotide sequence length needed for analysis are included. Scale bars indicate nucleotide substitutions per site.

Figure. Phylogenetic analysis of norovirus strains, Chanthaburi Province, Thailand, 2022. A) Partial sequence of the RNA-dependent RNA polymerase gene (187 bp). B) Complete sequence of the capsid gene (1,644 bp). Strains identified in this study (black circles) were compared with the reference (bold) and global strains. GenBank accession numbers for strains are indicated in parentheses. Trees were generated by using the maximum-likelihood method with 1,000 bootstrap replicates implemented in MEGA 11 (https://www.megasoftware.net). Bootstrap values >70 are indicated at the nodes. Only strains of sufficient nucleotide sequence length needed for analysis are included. Scale bars indicate nucleotide substitutions per site.

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Page created: February 18, 2023
Page updated: April 19, 2023
Page reviewed: April 19, 2023
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