Evidence map›Paper›PMID 31525517›Full record

Observational studyClinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases2020

The recent emergence of a highly related virulent Clostridium difficile clade with unique characteristics.

H A Shaw, M D Preston, K E W Vendrik, M D Cairns, H P Browne, R A Stabler, M J T Crobach, J Corver, H Pituch, A Ingebretsen and 7 more

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

41 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Article
  3. Frontiers in microbiology · 2026
    Article
  4. Review
  5. Phenotypic analysis of variousApplied and environmental microbiology · 2025
    Article
  6. Article
  7. Unique growth and morphology properties of Clade 5bioRxiv : the preprint server for biology · 2025
    Article
  8. Community-AcquiredInternational journal of molecular sciences · 2025
    Review
  9. Article
  10. The Global Burden ofInfectious disease reports · 2025
    Review
  11. EmergingmSystems · 2025
    Article
  12. Phenotypic analysis of variousbioRxiv : the preprint server for biology · 2025
    Article
  13. Distribution ofEmerging microbes & infections · 2024
    Article
  14. Article
  15. EmergingbioRxiv : the preprint server for biology · 2024
    Article
  16. Article
  17. Article
  18. The Strain and the Clinical Outcome ofOpen forum infectious diseases · 2024
    Article
  19. Journal of medical microbiology · 2024
    Review
  20. Antibiotic Resistances of Clostridioides difficile.Advances in experimental medicine and biology · 2024
    Article
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

17 authors at 9 institutions in 4 countries.

H A ShawDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK; Division of Bacteriology, National Institute for Biological Standards and Controls, South Mimms, Potters Bar, UK.
M D PrestonDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK; Analytical Biological Service Division, National Institute for Biological Standards and Controls, Potters Bar, UK.
K E W VendrikNational Reference Laboratory for CDI Surveillance, Department of Medical Microbiology and RIVM, Leiden University Medical Centre, Leiden, the Netherlands.
M D CairnsDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK; Public Health Laboratory London, Division of Infection, The Royal London Hospital, London, UK.
H P BrowneWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
R A StablerDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK.
M J T CrobachNational Reference Laboratory for CDI Surveillance, Department of Medical Microbiology and RIVM, Leiden University Medical Centre, Leiden, the Netherlands.
J CorverNational Reference Laboratory for CDI Surveillance, Department of Medical Microbiology and RIVM, Leiden University Medical Centre, Leiden, the Netherlands.
H PituchDepartment of Medical Microbiology, Medical University of Warsaw, Warsaw, Poland.
A IngebretsenDepartment of Microbiology, Oslo University Hospital, Oslo, Norway; Department of Infection Prevention, Oslo University Hospital, Oslo, Norway.
M PirmohamedDepartment of Molecular and Clinical Pharmacology, The University of Liverpool, Liverpool, UK.
A Faulds-PainDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK.
E ValienteDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK.
T D LawleyWellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
N F FairweatherCMBI, Imperial College London, London, UK.
E J KuijperNational Reference Laboratory for CDI Surveillance, Department of Medical Microbiology and RIVM, Leiden University Medical Centre, Leiden, the Netherlands.
B W WrenDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK. Electronic address: brendan.wren@lshtm.ac.uk.
Leiden University Medical Center · NLLondon School of Hygiene & Tropical Medicine · GBUniversity of London · GBWellcome Sanger Institute · GBImperial College London · GBMedical University of Warsaw · PLNational Institute for Biological Standards and Control · GBOslo University Hospital · NOUniversity of Liverpool · GB

Funding

Medical Research Council MR/K000551/1Medical Research Council MR/L006758/1Wellcome Trust 102979/Z/13/Z
6 · The paper itself

Abstract

objectivesClostridium difficile is a major global human pathogen divided into five clades, of which clade 3 is the least characterized and consists predominantly of PCR ribotype (RT) 023 strains. Our aim was to analyse and characterize this clade.

methodsIn this cohort study the clinical presentation of C. difficile RT023 infections was analysed in comparison with known 'hypervirulent' and non-hypervirulent strains, using data from the Netherlands national C. difficile surveillance programme. European RT023 strains of diverse origin were collected and whole-genome sequenced to determine the genetic similarity between isolates. Distinctive features were investigated and characterized.

resultsClinical presentation of C. difficile RT023 infections show severe infections akin to those seen with 'hypervirulent' strains from clades 2 (RT027) and 5 (RT078) (35%, 29% and 27% severe CDI, respectively), particularly with significantly more bloody diarrhoea than RT078 and non-hypervirulent strains (RT023 8%, other RTs 4%, p 0.036). The full genome sequence of strain CD305 is presented as a robust reference. Phylogenetic comparison of CD305 and a further 79 previously uncharacterized European RT023 strains of diverse origin revealed minor genetic divergence with >99.8% pairwise identity between strains. Analyses revealed distinctive features among clade 3 strains, including conserved pathogenicity locus, binary toxin and phage insertion toxin genotypes, glycosylation of S-layer proteins, presence of the RT078 four-gene trehalose cluster and an esculinase-negative genotype.

conclusionsGiven their recent emergence, virulence and genomic characteristics, the surveillance of clade 3 strains should be more highly prioritized.

Indexed as

AdolescentAdultAgedAged, 80 and overBacterial Typing TechniquesChildChild, PreschoolClostridioides difficileClostridium InfectionsCohort StudiesDiarrheaFemaleHigh-Throughput Nucleotide SequencingHospitalsHumansInfantClade 3Clostridium difficileClostridium difficile infectionNext-generation sequencingRT023S-layerTrehalose

Identifiers

PMID31525517
PMCPMC7167513
OpenAlexW2972622461

What OpenQuestion holds

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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.