Evidence map›Paper›PMID 23359622›Full record

ArticlePLoS neglected tropical diseases2013

A single multilocus sequence typing (MLST) scheme for seven pathogenic Leptospira species.

Siriphan Boonsilp, Janjira Thaipadungpanit, Premjit Amornchai, Vanaporn Wuthiekanun, Mark S Bailey, Matthew T G Holden, Cuicai Zhang, Xiugao Jiang, Nobuo Koizumi, Kyle Taylor and 11 more

Abstract readEvaluation Study
In one paragraph

Article in PLoS neglected tropical diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed
–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

115 citing papers in PubMed.

  1. A systematic review ofOne health (Amsterdam, Netherlands) · 2026
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  5. Retrospective Molecular Detection and Characterization of PathogenicTropical medicine and infectious disease · 2026
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  6. Molecular epidemiology of rodent-borneJournal of medical microbiology · 2026
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  9. Host-Driven Genetic Diversity ofTransboundary and emerging diseases · 2026
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  13. Shaping the future ofJournal of medical microbiology · 2025
    Review
  14. A Retrospective Cohort Study of Leptospirosis in Crete, Greece.Tropical medicine and infectious disease · 2025
    Article
  15. Article
  16. Article
  17. Molecular detection and typing of pathogenicEpidemiology and infection · 2025
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  18. Seroprevalence and Molecular Epidemiology ofTransboundary and emerging diseases · 2025
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  19. Article
  20. The Challenge of Bacterial Strain Identification:Tropical medicine and infectious disease · 2024
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55 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

21 authors.

Siriphan BoonsilpMahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Janjira Thaipadungpanit
Premjit Amornchai
Vanaporn Wuthiekanun
Mark S Bailey
Matthew T G Holden
Cuicai Zhang
Xiugao Jiang
Nobuo Koizumi
Kyle Taylor
Renee Galloway
Alex R Hoffmaster
Scott Craig
Lee D Smythe
Rudy A Hartskeerl
Nicholas P Day
Narisara Chantratita
Edward J Feil
David M Aanensen
Brian G Spratt
Sharon J Peacock

Funding

Wellcome Trust 089275Wellcome Trust 089472
6 · The paper itself

Abstract

backgroundThe available Leptospira multilocus sequence typing (MLST) scheme supported by a MLST website is limited to L. interrogans and L. kirschneri. Our aim was to broaden the utility of this scheme to incorporate a total of seven pathogenic species. METHODOLOGY AND

findingsWe modified the existing scheme by replacing one of the seven MLST loci (fadD was changed to caiB), as the former gene did not appear to be present in some pathogenic species. Comparison of the original and modified schemes using data for L. interrogans and L. kirschneri demonstrated that the discriminatory power of the two schemes was not significantly different. The modified scheme was used to further characterize 325 isolates (L. alexanderi [n = 5], L. borgpetersenii [n = 34], L. interrogans [n = 222], L. kirschneri [n = 29], L. noguchii [n = 9], L. santarosai [n = 10], and L. weilii [n = 16]). Phylogenetic analysis using concatenated sequences of the 7 loci demonstrated that each species corresponded to a discrete clade, and that no strains were misclassified at the species level. Comparison between genotype and serovar was possible for 254 isolates. Of the 31 sequence types (STs) represented by at least two isolates, 18 STs included isolates assigned to two or three different serovars. Conversely, 14 serovars were identified that contained between 2 to 10 different STs. New observations were made on the global phylogeography of Leptospira spp., and the utility of MLST in making associations between human disease and specific maintenance hosts was demonstrated.

conclusionThe new MLST scheme, supported by an updated MLST website, allows the characterization and species assignment of isolates of the seven major pathogenic species associated with leptospirosis.

Indexed as

Bacterial Typing TechniquesCluster AnalysisHumansLeptospiraLeptospirosisMolecular Sequence DataMultilocus Sequence TypingPhylogenySequence Analysis, DNA

Identifiers

PMID23359622
PMCPMC3554523

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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.