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Early Detection of SARS-CoV-2 Omicron BA.4 and BA.5 in German Wastewater

Wilhelm, Alexander ; Agrawal, Shelesh ; Schoth, Jens ; Meinert-Berning, Christina ; Bastian, Daniel ; Orschler, Laura ; Ciesek, Sandra ; Teichgräber, Burkhard ; Wintgens, Thomas ; Lackner, Susanne ; Weber, Frank-Andreas ; Widera, Marek (2022)
Early Detection of SARS-CoV-2 Omicron BA.4 and BA.5 in German Wastewater.
In: Viruses, 14 (9)
doi: 10.3390/v14091876
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Wastewater-based SARS-CoV-2 epidemiology (WBE) has been established as an important tool to support individual testing strategies. The Omicron sub-variants BA.4/BA.5 have spread globally, displacing the preceding variants. Due to the severe transmissibility and immune escape potential of BA.4/BA.5, early monitoring was required to assess and implement countermeasures in time. In this study, we monitored the prevalence of SARS-CoV-2 BA.4/BA.5 at six municipal wastewater treatment plants (WWTPs) in the Federal State of North Rhine-Westphalia (NRW, Germany) in May and June 2022. Initially, L452R-specific primers/probes originally designed for SARS-CoV-2 Delta detection were validated using inactivated authentic viruses and evaluated for their suitability for detecting BA.4/BA.5. Subsequently, the assay was used for RT-qPCR analysis of RNA purified from wastewater obtained twice a week at six WWTPs. The occurrence of L452R carrying RNA was detected in early May 2022, and the presence of BA.4/BA.5 was confirmed by variant-specific single nucleotide polymorphism PCR (SNP-PCR) targeting E484A/F486V and NGS sequencing. Finally, the mutant fractions were quantitatively monitored by digital PCR, confirming BA.4/BA.5 as the majority variant by 5 June 2022. In conclusion, the successive workflow using RT-qPCR, variant-specific SNP-PCR, and RT-dPCR demonstrates the strength of WBE as a versatile tool to rapidly monitor variants spreading independently of individual test capacities.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Wilhelm, Alexander ; Agrawal, Shelesh ; Schoth, Jens ; Meinert-Berning, Christina ; Bastian, Daniel ; Orschler, Laura ; Ciesek, Sandra ; Teichgräber, Burkhard ; Wintgens, Thomas ; Lackner, Susanne ; Weber, Frank-Andreas ; Widera, Marek
Art des Eintrags: Bibliographie
Titel: Early Detection of SARS-CoV-2 Omicron BA.4 and BA.5 in German Wastewater
Sprache: Englisch
Publikationsjahr: 2022
Ort: Darmstadt
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Viruses
Jahrgang/Volume einer Zeitschrift: 14
(Heft-)Nummer: 9
Kollation: 15 Seiten
DOI: 10.3390/v14091876
Zugehörige Links:
Kurzbeschreibung (Abstract):

Wastewater-based SARS-CoV-2 epidemiology (WBE) has been established as an important tool to support individual testing strategies. The Omicron sub-variants BA.4/BA.5 have spread globally, displacing the preceding variants. Due to the severe transmissibility and immune escape potential of BA.4/BA.5, early monitoring was required to assess and implement countermeasures in time. In this study, we monitored the prevalence of SARS-CoV-2 BA.4/BA.5 at six municipal wastewater treatment plants (WWTPs) in the Federal State of North Rhine-Westphalia (NRW, Germany) in May and June 2022. Initially, L452R-specific primers/probes originally designed for SARS-CoV-2 Delta detection were validated using inactivated authentic viruses and evaluated for their suitability for detecting BA.4/BA.5. Subsequently, the assay was used for RT-qPCR analysis of RNA purified from wastewater obtained twice a week at six WWTPs. The occurrence of L452R carrying RNA was detected in early May 2022, and the presence of BA.4/BA.5 was confirmed by variant-specific single nucleotide polymorphism PCR (SNP-PCR) targeting E484A/F486V and NGS sequencing. Finally, the mutant fractions were quantitatively monitored by digital PCR, confirming BA.4/BA.5 as the majority variant by 5 June 2022. In conclusion, the successive workflow using RT-qPCR, variant-specific SNP-PCR, and RT-dPCR demonstrates the strength of WBE as a versatile tool to rapidly monitor variants spreading independently of individual test capacities.

Freie Schlagworte: COVID-19 surveillance, SARS-CoV-2 monitoring, wastewater-based epidemiology (WBE), Omicron, BA.4, BA.5, variant of concern
Zusätzliche Informationen:

This article belongs to the Special Issue Molecular Epidemiology of SARS-CoV-2

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin, Gesundheit
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 13 Fachbereich Bau- und Umweltingenieurwissenschaften
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung
13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut IWAR - Wasser- und Abfalltechnik, Umwelt- und Raumplanung > Fachgebiet Wasser und Umweltbiotechnologie
Hinterlegungsdatum: 02 Aug 2024 12:43
Letzte Änderung: 02 Aug 2024 12:43
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