Evidence map›Paper›PMID 18039796›Full record

ArticleJournal of clinical microbiology2008

Comparison of seven techniques for typing international epidemic strains of Clostridium difficile: restriction endonuclease analysis, pulsed-field gel electrophoresis, PCR-ribotyping, multilocus sequence typing, multilocus variable-number tandem-repeat analysis, amplified fragment length polymorphism, and surface layer protein A gene sequence typing.

George Killgore, Angela Thompson, Stuart Johnson, Jon Brazier, Ed Kuijper, Jacques Pepin, Eric H Frost, Paul Savelkoul, Brad Nicholson, Renate J van den Berg and 7 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of clinical microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 135 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed, 1 pooled it
11.9field-weighted citation impact, top 1% 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

135 citing papers in PubMed, 1 synthesis or guideline pooled it, 338 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Relapse versus reinfection: recurrent Clostridium difficile infection following treatment with fidaxomicin or vancomycin.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2012
    Trial
  5. Journal of bacteriology · 2026
    Article
  6. Review
  7. bioRxiv : the preprint server for biology · 2025
    Article
  8. iScience · 2025
    Article
  9. Article
  10. Article
  11. Ribotypes and New Virulent Strains Across Europe.Advances in experimental medicine and biology · 2024
    Review
  12. Diagnostic Guidance for C. difficile Infections.Advances in experimental medicine and biology · 2024
    Article
  13. Core genome multilocus sequence typing of Clostridioides difficile to investigate transmission in the hospital setting.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023
    Article
  14. Article
  15. Article
  16. Genetic Relatedness of 5-Year Isolates ofAntibiotics (Basel, Switzerland) · 2021
    Article
  17. Review
  18. Temporal Variations in Patterns ofAntibiotics (Basel, Switzerland) · 2021
    Article
  19. Article
  20. Article

75 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

17 authors at 8 institutions in 5 countries.

George KillgoreCenters for Disease Control and Prevention, Atlanta, GA 30333, USA.
Angela Thompson
Stuart Johnson
Jon Brazier
Ed Kuijper
Jacques Pepin
Eric H Frost
Paul Savelkoul
Brad Nicholson
Renate J van den Berg
Haru Kato
Susan P Sambol
Walter Zukowski
Christopher Woods
Brandi Limbago
Dale N Gerding
L Clifford McDonald
Centers for Disease Control and Prevention · USEdward Hines, Jr. VA Hospital · USDuke University · USLeiden University Medical Center · NLUniversité de Sherbrooke · CAAmsterdam UMC Location VUmc · NLNational Institute of Infectious Diseases · JPUniversity Hospital of Wales · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Using 42 isolates contributed by laboratories in Canada, The Netherlands, the United Kingdom, and the United States, we compared the results of analyses done with seven Clostridium difficile typing techniques: multilocus variable-number tandem-repeat analysis (MLVA), amplified fragment length polymorphism (AFLP), surface layer protein A gene sequence typing (slpAST), PCR-ribotyping, restriction endonuclease analysis (REA), multilocus sequence typing (MLST), and pulsed-field gel electrophoresis (PFGE). We assessed the discriminating ability and typeability of each technique as well as the agreement among techniques in grouping isolates by allele profile A (AP-A) through AP-F, which are defined by toxinotype, the presence of the binary toxin gene, and deletion in the tcdC gene. We found that all isolates were typeable by all techniques and that discrimination index scores for the techniques tested ranged from 0.964 to 0.631 in the following order: MLVA, REA, PFGE, slpAST, PCR-ribotyping, MLST, and AFLP. All the techniques were able to distinguish the current epidemic strain of C. difficile (BI/027/NAP1) from other strains. All of the techniques showed multiple types for AP-A (toxinotype 0, binary toxin negative, and no tcdC gene deletion). REA, slpAST, MLST, and PCR-ribotyping all included AP-B (toxinotype III, binary toxin positive, and an 18-bp deletion in tcdC) in a single group that excluded other APs. PFGE, AFLP, and MLVA grouped two, one, and two different non-AP-B isolates, respectively, with their AP-B isolates. All techniques appear to be capable of detecting outbreak strains, but only REA and MLVA showed sufficient discrimination to distinguish strains from different outbreaks.

Indexed as

Amplified Fragment Length Polymorphism AnalysisBacterial ProteinsBacterial ToxinsBacterial Typing TechniquesCanadaClostridioides difficileDisease OutbreaksDNA, BacterialElectrophoresis, Gel, Pulsed-FieldEnterocolitis, PseudomembranousGenotypeHumansMinisatellite RepeatsMolecular EpidemiologyNetherlandsProhibitinsBacterial ProteinsBacterial ToxinsDNA, BacterialPHB2 protein, humanProhibitinssurface layer protein A, Bacteria

Identifiers

PMID18039796
PMCPMC2238077
OpenAlexW2144646532

What OpenQuestion holds

Textmetadata
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.