» Articles » PMID: 38823781

Diverse Genotypes of Norovirus Genogroup I and II Contamination in Environmental Water in Thailand During the COVID-19 Outbreak from 2020 to 2022

Overview
Journal Virol Sin
Specialty Microbiology
Date 2024 Jun 1
PMID 38823781
Authors
Affiliations
Soon will be listed here.
Abstract

Noroviruses (NoVs) are the most significant viral pathogens associated with waterborne and foodborne outbreaks of nonbacterial acute gastroenteritis in humans worldwide. This study aimed to investigate the prevalence and diversity of NoVs contaminated in the environmental water in Chiang Mai, Thailand. A total of 600 environmental water samples were collected from ten sampling sites in Chiang Mai from July 2020 to December 2022. The presence of NoV genogroups I (GI), GII, and GIV were examined using real-time RT-PCR assay. The genotype of the virus was determined by nucleotide sequencing and phylogenetic analysis. The results showed that NoV GI and GII were detected at 8.5% (51/600) and 11.7% (70/600) of the samples tested, respectively. However, NoV GIV was not detected in this study. NoV circulated throughout the year, with a higher detection rate during the winter season. Six NoV GI genotypes (GI.1-GI.6) and eight NoV GII genotypes (GII.2, GII.3, GII.7, GII.8, GII.10, GII.13, GII.17, and GII.21) were identified. Among 121 NoV strains detected, GII.17 was the most predominant genotype (24.8%, 30 strains), followed by GII.2 (21.5%, 26 strains), GI.3 (17.4%, 21 strains), and GI.4 (16.5%, 20 strains). Notably, NoV GII.3, GII.7, GII.8, and GII.10 were detected for the first time in water samples in this area. This study provides insight into the occurrence and seasonal pattern of NoV along with novel findings of NoV strains in environmental water in Thailand during the COVID-19 outbreak. Our findings emphasize the importance of further surveillance studies to monitor viral contamination in environmental water.

Citing Articles

The genetic diversity of genogroup I noroviruses causing acute gastroenteritis outbreaks in Beijing between 2014 and 2023.

Hu X, Sun L, Han T, Zhao J, Qi X, Zhang Y Heliyon. 2024; 10(20):e39202.

PMID: 39640656 PMC: 11620219. DOI: 10.1016/j.heliyon.2024.e39202.

References
1.
Parra G . Emergence of norovirus strains: A tale of two genes. Virus Evol. 2020; 5(2):vez048. PMC: 6875644. DOI: 10.1093/ve/vez048. View

2.
Khamrin P, Kumthip K, Supadej K, Thongprachum A, Okitsu S, Hayakawa S . Noroviruses and sapoviruses associated with acute gastroenteritis in pediatric patients in Thailand: increased detection of recombinant norovirus GII.P16/GII.13 strains. Arch Virol. 2017; 162(11):3371-3380. DOI: 10.1007/s00705-017-3501-3. View

3.
La Rosa G, Della Libera S, Iaconelli M, Proroga Y, De Medici D, Martella V . Detection of Norovirus GII.17 Kawasaki 2014 in Shellfish, Marine Water and Underwater Sewage Discharges in Italy. Food Environ Virol. 2017; 9(3):326-333. DOI: 10.1007/s12560-017-9290-8. View

4.
Teunis P, Moe C, Liu P, Miller S, Lindesmith L, Baric R . Norwalk virus: how infectious is it?. J Med Virol. 2008; 80(8):1468-76. DOI: 10.1002/jmv.21237. View

5.
Pham N, Khamrin P, Shimizu-Onda Y, Hoque S, Trinh Q, Komine-Aizawa S . Genetic diversity and declining norovirus prevalence in infants and children during Japan's COVID-19 pandemic: a three-year molecular surveillance. Arch Virol. 2023; 168(9):231. DOI: 10.1007/s00705-023-05856-w. View