COVID-19 wastewater based epidemiology: long-term monitoring of 10 WWTP in France reveals the importance of the sampling context.
Water Sci Technol
; 84(8): 1997-2013, 2021 Oct.
Article
in English
| MEDLINE | ID: covidwho-1459207
ABSTRACT
SARS-CoV-2 wastewater-based epidemiology (WBE) has been advanced as a relevant indicator of distribution of COVID-19 in communities, supporting classical testing and tracing epidemiological approaches. An extensive sampling campaign, including ten municipal wastewater treatment plants, has been conducted in different cities of France over a 20-week period, encompassing the second peak of COVID-19 outbreak in France. A well-recognised ultrafiltration - RNA extraction - RT-qPCR protocol was used and qualified, showing 5.5 +/- 0.5% recovery yield on heat-inactivated SARS-CoV-2. Importantly the whole, solid and liquid, fraction of wastewater was used for virus concentration in this study. Campaign results showed medium- to strong- correlation between SARS-CoV-2 WBE data and COVID-19 prevalence. To go further, statistical relationships between WWTP inlet flow rate and rainfall were studied and taken into account for each WWTP in order to calculate contextualized SARS-CoV-2 loads. This metric presented improved correlation strengths with COVID-19 prevalence for WWTP particularly submitted and sensitive to rain. Such findings highlighted that SARS-CoV-2 WBE data ultimately require to be contextualized for relevant interpretation.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Wastewater
/
COVID-19
Type of study:
Observational study
Topics:
Long Covid
Limits:
Humans
Country/Region as subject:
Europa
Language:
English
Journal:
Water Sci Technol
Journal subject:
Environmental Health
/
Toxicology
Year:
2021
Document Type:
Article
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