Evidence map›Paper›PMID 24703302›Full record

ArticleEpidemiology and infection2015

Inter-laboratory comparison of multi-locus variable-number tandem repeat analysis (MLVA) for verocytotoxin-producing Escherichia coli O157 to facilitate data sharing.

A Holmes, N Perry, G Willshaw, M Hanson, L Allison

Abstract readComparative Study
In one paragraph

Article in Epidemiology and infection, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
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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

5 authors.

A HolmesScottish Escherichia coli O157/VTEC Reference Laboratory, Royal Infirmary of Edinburgh, Edinburgh,UK.
N PerryGastrointestinal Bacterial Reference Unit, Public Health England, London,UK.
G WillshawGastrointestinal Bacterial Reference Unit, Public Health England, London,UK.
M HansonScottish Escherichia coli O157/VTEC Reference Laboratory, Royal Infirmary of Edinburgh, Edinburgh,UK.
L AllisonScottish Escherichia coli O157/VTEC Reference Laboratory, Royal Infirmary of Edinburgh, Edinburgh,UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multi-locus variable number tandem repeat analysis (MLVA) is used in clinical and reference laboratories for subtyping verocytotoxin-producing Escherichia coli O157 (VTEC O157). However, as yet there is no common allelic or profile nomenclature to enable laboratories to easily compare data. In this study, we carried out an inter-laboratory comparison of an eight-loci MLVA scheme using a set of 67 isolates of VTEC O157. We found all but two isolates were identical in profile in the two laboratories, and repeat units were homogeneous in size but some were incomplete. A subset of the isolates (n = 17) were sequenced to determine the actual copy number of representative alleles, thereby enabling alleles to be named according to international consensus guidelines. This work has enabled us to realize the potential of MLVA as a portable, highly discriminatory and convenient subtyping method.

Indexed as

Minisatellite RepeatsGenotypeInformation DisseminationMolecular TypingShiga-Toxigenic Escherichia coli

Identifiers

PMID24703302
PMCPMC9206811

What OpenQuestion holds

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Registered trials

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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.