Environmental Surveillance of Human Astroviruses in Jinan City of China, 2020-2021
© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature..
Human astroviruses (HAstVs) are a significant etiological agent of acute gastroenteritis in children. In order to investigate the circulation of HAstVs during the COVID-19 pandemic, a 2-year environmental surveillance was conducted in Jinan between 2020 and 2021. A total of 24 sewage samples were collected and concentrated. Real-time PCR indicated a positive rate of 83.3%, 79.2% (19/24), and 62.5% for classic, MLB, and VA types of HAstV in sewage samples, respectively, with genomic copies ranging from 6.4 × 103 to 3.7 × 107, 3.2 × 104 to 2.2 × 106, and 1.2 × 104 to 1.6 × 107 l-1. Next-generation sequencing (NGS) analysis on complete ORF2 amplicons from each sewage concentrate revealed the presence of 11 HAstV types, including HAstV-1, -2, -4, -5, MLB1, and VA1 to VA6, as well as non-human animal astroviruses. The most abundant HAstV types were HAstV-1, -4, and -5, which accounted for 70.3%, 12.6%, and 9.1% of total HAstV reads, respectively. Phylogenetic analysis revealed that the sequences obtained in this study were segregated into multiple transmission lineages, yet exhibited less genetic divergence among themselves than with foreign strains. These findings provide insight into the genotype diversity and genetic characterization of HAstVs during the COVID-19 pandemic, and highlight the effectiveness of utilizing NGS approaches to investigate sewage HAstVs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
Food and environmental virology - 16(2024), 1 vom: 31. März, Seite 50-57 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Xiaojuan [VerfasserIn] |
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| Links: |
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| Themen: |
Detection |
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| Anmerkungen: |
Date Completed 26.03.2024 Date Revised 26.03.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s12560-023-09576-x |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Human astroviruses (HAstVs) are a significant etiological agent of acute gastroenteritis in children. In order to investigate the circulation of HAstVs during the COVID-19 pandemic, a 2-year environmental surveillance was conducted in Jinan between 2020 and 2021. A total of 24 sewage samples were collected and concentrated. Real-time PCR indicated a positive rate of 83.3%, 79.2% (19/24), and 62.5% for classic, MLB, and VA types of HAstV in sewage samples, respectively, with genomic copies ranging from 6.4 × 103 to 3.7 × 107, 3.2 × 104 to 2.2 × 106, and 1.2 × 104 to 1.6 × 107 l-1. Next-generation sequencing (NGS) analysis on complete ORF2 amplicons from each sewage concentrate revealed the presence of 11 HAstV types, including HAstV-1, -2, -4, -5, MLB1, and VA1 to VA6, as well as non-human animal astroviruses. The most abundant HAstV types were HAstV-1, -4, and -5, which accounted for 70.3%, 12.6%, and 9.1% of total HAstV reads, respectively. Phylogenetic analysis revealed that the sequences obtained in this study were segregated into multiple transmission lineages, yet exhibited less genetic divergence among themselves than with foreign strains. These findings provide insight into the genotype diversity and genetic characterization of HAstVs during the COVID-19 pandemic, and highlight the effectiveness of utilizing NGS approaches to investigate sewage HAstVs | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Wang, Suting |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Meng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wenqiang |e verfasserin |4 aut | |
| 700 | 1 | |a Tao, Zexin |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Aiqiang |e verfasserin |4 aut | |
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