COVID-19 wastewater surveillance in rural communities : Comparison of lagoon and pumping station samples
Copyright © 2021 Elsevier B.V. All rights reserved..
Wastewater-based epidemiology/wastewater surveillance has been a topic of significant interest over the last year due to its application in SARS-CoV-2 surveillance to track prevalence of COVID-19 in communities. Although SARS-CoV-2 surveillance has been applied in more than 50 countries to date, the application of this surveillance has been largely focused on relatively affluent urban and peri-urban communities. As such, there is a knowledge gap regarding the implementation of reliable wastewater surveillance in small and rural communities for the purpose of tracking rates of incidence of COVID-19 and other pathogens or biomarkers. This study examines the relationships existing between SARS-CoV-2 viral signal from wastewater samples harvested from an upstream pumping station and from an access port at a downstream wastewater treatment lagoon with the community's COVID-19 rate of incidence (measured as percent test positivity) in a small, rural community in Canada. Real-time quantitative polymerase chain reaction (RT-qPCR) targeting the N1 and N2 genes of SARS-CoV-2 demonstrate that all 24-h composite samples harvested from the pumping station over a period of 5.5 weeks had strong viral signal, while all samples 24-h composite samples harvested from the lagoon over the same period were below the limit of quantification. RNA concentrations and integrity of samples harvested from the lagoon were both lower and more variable than from samples from the upstream pumping station collected on the same date, indicating a higher overall stability of SARS-CoV-2 RNA upstream of the lagoon. Additionally, measurements of PMMoV signal in wastewater allowed normalizing SARS-CoV-2 viral signal for fecal matter content, permitting the detection of actual changes in community prevalence with a high level of granularity. As a result, in sewered small and rural communities or low-income regions operating wastewater lagoons, samples for wastewater surveillance should be harvested from pumping stations or the sewershed as opposed to lagoons.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:801 |
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| Enthalten in: |
The Science of the total environment - 801(2021) vom: 20. Dez., Seite 149618 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
D'Aoust, Patrick M [VerfasserIn] |
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| Links: |
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| Themen: |
COVID-19 |
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| Anmerkungen: |
Date Completed 02.11.2021 Date Revised 17.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.scitotenv.2021.149618 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM329620118 |
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| 520 | |a Copyright © 2021 Elsevier B.V. All rights reserved. | ||
| 520 | |a Wastewater-based epidemiology/wastewater surveillance has been a topic of significant interest over the last year due to its application in SARS-CoV-2 surveillance to track prevalence of COVID-19 in communities. Although SARS-CoV-2 surveillance has been applied in more than 50 countries to date, the application of this surveillance has been largely focused on relatively affluent urban and peri-urban communities. As such, there is a knowledge gap regarding the implementation of reliable wastewater surveillance in small and rural communities for the purpose of tracking rates of incidence of COVID-19 and other pathogens or biomarkers. This study examines the relationships existing between SARS-CoV-2 viral signal from wastewater samples harvested from an upstream pumping station and from an access port at a downstream wastewater treatment lagoon with the community's COVID-19 rate of incidence (measured as percent test positivity) in a small, rural community in Canada. Real-time quantitative polymerase chain reaction (RT-qPCR) targeting the N1 and N2 genes of SARS-CoV-2 demonstrate that all 24-h composite samples harvested from the pumping station over a period of 5.5 weeks had strong viral signal, while all samples 24-h composite samples harvested from the lagoon over the same period were below the limit of quantification. RNA concentrations and integrity of samples harvested from the lagoon were both lower and more variable than from samples from the upstream pumping station collected on the same date, indicating a higher overall stability of SARS-CoV-2 RNA upstream of the lagoon. Additionally, measurements of PMMoV signal in wastewater allowed normalizing SARS-CoV-2 viral signal for fecal matter content, permitting the detection of actual changes in community prevalence with a high level of granularity. As a result, in sewered small and rural communities or low-income regions operating wastewater lagoons, samples for wastewater surveillance should be harvested from pumping stations or the sewershed as opposed to lagoons | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a COVID-19 | |
| 650 | 4 | |a Pepper mild mottle virus | |
| 650 | 4 | |a SARS-CoV-2 | |
| 650 | 4 | |a Wastewater surveillance | |
| 650 | 4 | |a Wastewater treatment lagoon | |
| 650 | 4 | |a Wastewater-based epidemiology | |
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| 700 | 1 | |a Towhid, Syeda Tasneem |e verfasserin |4 aut | |
| 700 | 1 | |a Mercier, Élisabeth |e verfasserin |4 aut | |
| 700 | 1 | |a Hegazy, Nada |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Bhatnagar, Kamya |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhihao |e verfasserin |4 aut | |
| 700 | 1 | |a Naughton, Colleen C |e verfasserin |4 aut | |
| 700 | 1 | |a MacKenzie, Alex E |e verfasserin |4 aut | |
| 700 | 1 | |a Graber, Tyson E |e verfasserin |4 aut | |
| 700 | 1 | |a Delatolla, Robert |e verfasserin |4 aut | |
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