Evidence map›Paper›PMID 33334397›Full record

ArticleEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin2020

Evaluation of lockdown effect on SARS-CoV-2 dynamics through viral genome quantification in waste water, Greater Paris, France, 5 March to 23 April 2020.

S Wurtzer, V Marechal, J M Mouchel, Y Maday, R Teyssou, E Richard, J L Almayrac, L Moulin

Open access · diamondAbstract readEvaluation Study
In one paragraph

Article in Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 311 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
311citing papers in PubMed, 2 pooled it
9.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

311 citing papers in PubMed, 2 syntheses or guidelines pooled it, 433 citations in OpenAlex.

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251 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

S WurtzerEau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France.
V MarechalSorbonne Université, INSERM, Centre de Recherche Saint-Antoine2, Paris, France.
J M MouchelSorbonne Université, CNRS, EPHE, UMR 7619 Metis, , e-LTER Zone Atelier Seine, Paris, France.
Y MadayThese authors are co-founders of the COVID-IA/PANDEMIA initiative.
R TeyssouDepartment of Virology, Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France.
E RichardEau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France.
J L AlmayracSIAAP, Service process-laboratoire SIAAP site Seine Amont, Valenton, France.
L MoulinEau de Paris, R&D Laboratory, DRDQE Ivry/Seine, France.
Eau de Paris (France) · FRCentre National de la Recherche Scientifique · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

IntroductionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of coronavirus disease (COVID-19). People infected with SARS-CoV-2 may exhibit no or mild non-specific symptoms; thus, they may contribute to silent circulation of the virus among humans. Since SARS-CoV-2 RNA can be detected in stool samples, monitoring SARS-CoV-2 RNA in waste water (WW) has been proposed as a complementary tool to investigate virus circulation in human populations.AimTo test if the quantification of SARS-CoV-2 genomes in WW correlates with the number of symptomatic or non-symptomatic carriers.MethodWe performed a time-course quantitative analysis of SARS-CoV-2 by RT-qPCR in raw WW samples collected from several major WW treatment plants in Greater Paris. The study period was 5 March to 23 April 2020, including the lockdown period in France (from 17 March).ResultsWe showed that the increase of genome units in raw WW accurately followed the increase of human COVID-19 cases observed at the regional level. Of note, the viral genome could be detected before the epidemic grew massively (around 8 March). Equally importantly, a marked decrease in the quantities of genome units was observed concomitantly with the reduction in the number of new COVID-19 cases, 29 days following the lockdown.ConclusionThis work suggests that a quantitative monitoring of SARS-CoV-2 genomes in WW could generate important additional information for improved monitoring of SARS-CoV-2 circulation at local or regional levels and emphasises the role of WW-based epidemiology.

Indexed as

Genome, ViralPhysical DistancingQuarantineVirus SheddingCommunicable Disease ControlCOVID-19FranceHumansParisReverse Transcriptase Polymerase Chain ReactionRNA, ViralSARS-CoV-2Viral LoadWastewaterRNA, ViralWastewaterCOVID-19lockdownquantificationSARS-CoV-2waste water

Identifiers

PMID33334397
PMCPMC7812418
OpenAlexW3112723974

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.