Evidence map›Paper›PMID 27654037›Full record

ArticlePLoS neglected tropical diseases2016

An Extended Multilocus Sequence Typing (MLST) Scheme for Rapid Direct Typing of Leptospira from Clinical Samples.

Sabrina Weiss, Angela Menezes, Kate Woods, Anisone Chanthongthip, Sabine Dittrich, Agatha Opoku-Boateng, Maimuna Kimuli, Victoria Chalker

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Microorganisms · 2026
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  4. Host-Driven Genetic Diversity ofTransboundary and emerging diseases · 2026
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  10. Molecular Detection of Viral and Bacterial Pathogens in Red Foxes (Animals : an open access journal from MDPI · 2024
    Article
  11. Article
  12. Article
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  14. Article
  15. Pathogens (Basel, Switzerland) · 2023
    Article
  16. Article
  17. Article
  18. Outbreak ofInternational journal of environmental research and public health · 2022
    Article
  19. Animals : an open access journal from MDPI · 2022
    Article
  20. Veterinary sciences · 2022
    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.

Sabrina WeissPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.ORCID http://orcid.org/0000-0002-4835-3695
Angela MenezesPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.
Kate WoodsPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.
Anisone ChanthongthipLao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao PDR.
Sabine DittrichLao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao PDR.
Agatha Opoku-BoatengPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.
Maimuna KimuliPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.
Victoria ChalkerPublic Health England (PHE), National Infection Service (NIS), London, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRapid typing of Leptospira is currently impaired by requiring time consuming culture of leptospires. The objective of this study was to develop an assay that provides multilocus sequence typing (MLST) data direct from patient specimens while minimising costs for subsequent sequencing. METHODOLOGY AND

findingsAn existing PCR based MLST scheme was modified by designing nested primers including anchors for facilitated subsequent sequencing. The assay was applied to various specimen types from patients diagnosed with leptospirosis between 2014 and 2015 in the United Kingdom (UK) and the Lao Peoples Democratic Republic (Lao PDR). Of 44 clinical samples (23 serum, 6 whole blood, 3 buffy coat, 12 urine) PCR positive for pathogenic Leptospira spp. at least one allele was amplified in 22 samples (50%) and used for phylogenetic inference. Full allelic profiles were obtained from ten specimens, representing all sample types (23%). No nonspecific amplicons were observed in any of the samples. Of twelve PCR positive urine specimens three gave full allelic profiles (25%) and two a partial profile. Phylogenetic analysis allowed for species assignment. The predominant species detected was L. interrogans (10/14 and 7/8 from UK and Lao PDR, respectively). All other species were detected in samples from only one country (Lao PDR: L. borgpetersenii [1/8]; UK: L. kirschneri [1/14], L. santarosai [1/14], L. weilii [2/14]).

conclusionTyping information of pathogenic Leptospira spp. was obtained directly from a variety of clinical samples using a modified MLST assay. This assay negates the need for time-consuming culture of Leptospira prior to typing and will be of use both in surveillance, as single alleles enable species determination, and outbreaks for the rapid identification of clusters.

Identifiers

PMID27654037
PMCPMC5031427

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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.