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<p>This study focuses on the characterization of human viral diversity within a major Wastewater Treatment Plant (WWTP) in the central area of Tianjin, China, with a particular emphasis on adenoviruses due to their robust survivability and potential health implications. By employing metagenomic sequencing, targeted sequencing, quantitative polymerase chain reaction (qPCR) analysis, and cell culture methodologies, we identified a broad spectrum of human viruses, encompassing 25 viral families and 45 viral genera, including enteric, respiratory, and contact viruses. Our findings demonstrate that adenoviruses were stably present in sewage from January to May and retained their infectious activity. The temporal analysis of viral loads across different months revealed no significant changes, suggesting a consistent risk of exposure. Additionally, our phylogenetic analysis of adenoviruses isolated from A549 cell cultures provides insights into their genotypic diversity and potential transmission dynamics. This comprehensive assessment underscores the critical need for improved viral surveillance in urban wastewater systems to mitigate public health risks and highlights the importance of advanced treatment technologies to address the challenges posed by adenoviruses and other pathogenic viruses in municipal wastewater.</p>

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Characterization of Human Viral Diversity and Adenovirus Isolates in a Sewage Treatment Plant in Tianjin: Implications for Public Health and Advanced Monitoring

  • 期刊论文

  • 发表日期：

    2025年7月12日

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  • Hui Fang,
  • Youren Yu,
  • Yanyan Su,
  • Haihong Li,
  • Huihui Gao,
  • Donghang Li,
  • Dasheng Xia,
  • Chang Liu,
  • Daqing Mao

摘要

This study focuses on the characterization of human viral diversity within a major Wastewater Treatment Plant (WWTP) in the central area of Tianjin, China, with a particular emphasis on adenoviruses due to their robust survivability and potential health implications. By employing metagenomic sequencing, targeted sequencing, quantitative polymerase chain reaction (qPCR) analysis, and cell culture methodologies, we identified a broad spectrum of human viruses, encompassing 25 viral families and 45 viral genera, including enteric, respiratory, and contact viruses. Our findings demonstrate that adenoviruses were stably present in sewage from January to May and retained their infectious activity. The temporal analysis of viral loads across different months revealed no significant changes, suggesting a consistent risk of exposure. Additionally, our phylogenetic analysis of adenoviruses isolated from A549 cell cultures provides insights into their genotypic diversity and potential transmission dynamics. This comprehensive assessment underscores the critical need for improved viral surveillance in urban wastewater systems to mitigate public health risks and highlights the importance of advanced treatment technologies to address the challenges posed by adenoviruses and other pathogenic viruses in municipal wastewater.