Evidence map›Paper›PMID 35197938›Full record

ArticleFrontiers in microbiology2021

Analysis of SARS-CoV-2 Variants From 24,181 Patients Exemplifies the Role of Globalization and Zoonosis in Pandemics.

Philippe Colson, Pierre-Edouard Fournier, Hervé Chaudet, Jérémy Delerce, Audrey Giraud-Gatineau, Linda Houhamdi, Claudia Andrieu, Ludivine Brechard, Marielle Bedotto, Elsa Prudent and 15 more

RetractedAbstract read
In one paragraph

Article in Frontiers in microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Current research in microbial sciences · 2025
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  6. Observational
  7. Review
  8. Article
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  16. SARS-CoV-2 reinfection and COVID-19 severity.Emerging microbes & infections · 2022
    Article
  17. Article
  18. Article
  19. A 21L/BA.2-21K/BA.1 "MixOmicron" SARS-CoV-2 hybrid undetected by qPCR that screen for variant in routine diagnosis.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2022
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

25 authors.

Philippe ColsonIHU Méditerranée Infection, Marseille, France.
Pierre-Edouard FournierIHU Méditerranée Infection, Marseille, France.
Hervé ChaudetIHU Méditerranée Infection, Marseille, France.
Jérémy DelerceIHU Méditerranée Infection, Marseille, France.
Audrey Giraud-GatineauIHU Méditerranée Infection, Marseille, France.
Linda HouhamdiIHU Méditerranée Infection, Marseille, France.
Claudia AndrieuIHU Méditerranée Infection, Marseille, France.
Ludivine BrechardIHU Méditerranée Infection, Marseille, France.
Marielle BedottoIHU Méditerranée Infection, Marseille, France.
Elsa PrudentIHU Méditerranée Infection, Marseille, France.
Céline GazinIHU Méditerranée Infection, Marseille, France.
Mamadou BeyeIHU Méditerranée Infection, Marseille, France.
Emilie BurelIHU Méditerranée Infection, Marseille, France.
Pierre DudouetIHU Méditerranée Infection, Marseille, France.
Hervé Tissot-DupontIHU Méditerranée Infection, Marseille, France.
Philippe GautretIHU Méditerranée Infection, Marseille, France.
Jean-Christophe LagierIHU Méditerranée Infection, Marseille, France.
Matthieu MillionIHU Méditerranée Infection, Marseille, France.
Philippe BrouquiIHU Méditerranée Infection, Marseille, France.
Philippe ParolaIHU Méditerranée Infection, Marseille, France.
Florence FenollarIHU Méditerranée Infection, Marseille, France.
Michel DrancourtIHU Méditerranée Infection, Marseille, France.
Bernard La ScolaIHU Méditerranée Infection, Marseille, France.
Anthony LevasseurIHU Méditerranée Infection, Marseille, France.
Didier RaoultIHU Méditerranée Infection, Marseille, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

After the end of the first epidemic episode of SARS-CoV-2 infections, as cases began to rise again during the summer of 2020, we at IHU Méditerranée Infection in Marseille, France, intensified the genomic surveillance of SARS-CoV-2, and described the first viral variants. In this study, we compared the incidence curves of SARS-CoV-2-associated deaths in different countries and reported the classification of SARS-CoV-2 variants detected in our institute, as well as the kinetics and sources of the infections. We used mortality collected from a COVID-19 data repository for 221 countries. Viral variants were defined based on ≥5 hallmark mutations along the whole genome shared by ≥30 genomes. SARS-CoV-2 genotype was determined for 24,181 patients using next-generation genome and gene sequencing (in 47 and 11% of cases, respectively) or variant-specific qPCR (in 42% of cases). Sixteen variants were identified by analyzing viral genomes from 9,788 SARS-CoV-2-diagnosed patients. Our data show that since the first SARS-CoV-2 epidemic episode in Marseille, importation through travel from abroad was documented for seven of the new variants. In addition, for the B.1.160 variant of Pangolin classification (a.k.a. Marseille-4), we suspect transmission from farm minks. In conclusion, we observed that the successive epidemic peaks of SARS-CoV-2 infections are not linked to rebounds of viral genotypes that are already present but to newly introduced variants. We thus suggest that border control is the best mean of combating this type of introduction, and that intensive control of mink farms is also necessary to prevent the emergence of new variants generated in this animal reservoir.

Indexed as

classificationepidemicsmutantpandemicsSARS-CoV-2travelvariantzoonosis

Identifiers

PMID35197938
PMCPMC8859183

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.