数字农科院2.0

Molecular characterization of human bocavirus in municipal wastewaters using amplicon target sequencing

文献类型： 外文期刊

作者： Liang Peng;Fengxia Yang;Jingliang Shi;Liuzhu Pan;Yixin Liu;Daqing Mao;Yi Luo

作者机构：

关键词： Amplicon target sequencing;Human bocavirus;Molecular characterization;Municipal wastewater;Phylogenetic analysis

期刊名称： Science of the Total Environment

ISSN： 0048-9697

年卷期： 2024 年 918 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Human bocavirus (HBoV) is an emerging health concern worldwide, associated with range of clinical manifestations, including gastroenteritis and respiratory infections. Therefore, it is crucial to comprehend and minimize their prevalence in different systems. In this study, we conducted regular sampling throughout the year in two different sizes and work processes of wastewater treatment plants (WWTPs) in Tianjin, China. Our objective was to investigate the occurrence, prevalence, and endurance of HBoV in wastewater, while also evaluating the efficacy of amplicon target sequencing in directly detecting HBoV in wastewater. At two WWTPs, HBoV2 (45.51 %—45.67 %) and HBoV3 (38.30 %—40.25 %) were the most common genotypes identified, and the mean concentration range of HBoV was 2.54—7.40 log10 equivalent copies/l as determined by multiplex real-time quantitative PCR assay. A positive rate of HBoV was found in 96.6 % (29/30) samples of A-WWTP, and 96.6 % (26/27) samples of B-WWTP. The phylogenetic analysis indicated that the nucleotide similarity between the HBoV DNA sequences to the reference HBoV sequences published globally ranged from 90.14 %—100 %. A significant variation in the read abundance of HBoV2 and HBoV3 in two wastewater treatment plants (p < 0.05) was detected, specifically in the Winter and Summer seasons. The findings revealed a strong correlation between the genotypes detected in wastewater and the clinical data across various regions in China. In addition, it is worth mentioning that HBoV4 was exclusively detected in wastewater and not found in the clinical samples from patients. This study highlights the high prevalence of human bocavirus in municipal wastewater. This finding illustrates that amplicon target sequencing can amplify a wide variety of viruses, enabling the identification of newly discovered viruses.

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