Evidence map›Paper›PMID 16287512›Full record

ArticleBMC microbiology2005

Evaluation and selection of tandem repeat loci for Streptococcus pneumoniae MLVA strain typing.

Jean-Louis Koeck, Berthe-Marie Njanpop-Lafourcade, Sonia Cade, Emmanuelle Varon, Lassana Sangare, Samina Valjevac, Gilles Vergnaud, Christine Pourcel

Abstract read
In one paragraph

Article in BMC microbiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

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

  1. Molecular Epidemiology ofInternational journal of molecular sciences · 2025
    Pooled it
  2. Comparative Genotyping of Malaysian Clinical Isolates ofThe Malaysian journal of medical sciences : MJMS · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Population structure of hyperinvasive serotype 12F, clonal complex 218 Streptococcus pneumoniae revealed by multilocus boxB sequence typing.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2011
    Article
  13. Article
  14. Multilocus variable number tandem repeat analysis for Salmonella enterica subspecies.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2011
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

8 authors.

Jean-Louis KoeckLaboratoire de Biologie Clinique, HIA Robert Picqué, 351, Route de Toulouse, 33 140 Villenave d'Ornon, France. jlkoeck@gmail.com
Berthe-Marie Njanpop-Lafourcade
Sonia Cade
Emmanuelle Varon
Lassana Sangare
Samina Valjevac
Gilles Vergnaud
Christine Pourcel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrecise identification of bacterial pathogens at the strain level is essential for epidemiological purposes. In Streptococcus pneumoniae, the existence of 90 different serotypes makes the typing particularly difficult and requires the use of highly informative tools. Available methods are relatively expensive and cannot be used for large-scale or routine typing of any new isolate. We explore here the potential of MLVA (Multiple Loci VNTR Analysis; VNTR, Variable Number of Tandem Repeats), a method of growing importance in the field of molecular epidemiology, for genotyping of Streptococcus pneumoniae.

resultsAvailable genome sequences were searched for polymorphic tandem repeats. The loci identified were typed across a collection of 56 diverse isolates and including a group of serotype 1 isolates from Africa. Eventually a set of 16 VNTRs was proposed for MLVA-typing of S. pneumoniae. These robust markers were sufficient to discriminate 49 genotypes and to aggregate strains on the basis of the serotype and geographical origin, although some exceptions were found. Such exceptions may reflect serotype switching or horizontal transfer of genetic material.

conclusionWe describe a simple PCR-based MLVA genotyping scheme for S. pneumoniae which may prove to be a powerful complement to existing tools for epidemiological studies. Using this technique we uncovered a clonal population of strains, responsible for infections in Burkina Faso. We believe that the proposed MLVA typing scheme can become a standard for epidemiological studies of S. pneumoniae.

Indexed as

Bacterial Typing TechniquesGenome, BacterialGenotypeHumansPneumococcal InfectionsPolymorphism, GeneticPulmonary AlveoliRepetitive Sequences, Nucleic AcidSputumStreptococcus pneumoniae

Identifiers

PMID16287512
PMCPMC1315331

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.