Evidence map›Paper›PMID 25896708›Full record

ArticleAntimicrobial agents and chemotherapy2015

Characterization of pre-antibiotic era Klebsiella pneumoniae isolates with respect to antibiotic/disinfectant susceptibility and virulence in Galleria mellonella.

Matthew E Wand, Kate S Baker, Gabriel Benthall, Hannah McGregor, James W I McCowen, Ana Deheer-Graham, J Mark Sutton

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 7% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
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  4. Incidence and antimicrobial susceptibility profiles of multi-drug resistant Klebsiella pneumoniae strains isolated from diseased Clarias gariepinus.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
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  9. General Overview ofBiology · 2024
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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

7 authors at 2 institutions in 1 country.

Matthew E WandPublic Health England, Microbiology Services Division, Salisbury, Wiltshire, United Kingdom matthew.wand@phe.gov.uk.
Kate S BakerWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Gabriel BenthallPublic Health England, Microbiology Services Division, Salisbury, Wiltshire, United Kingdom.
Hannah McGregorNational Collection of Type Cultures, Culture Collections, Public Health England, Salisbury, Wiltshire, United Kingdom.
James W I McCowenPublic Health England, Microbiology Services Division, Salisbury, Wiltshire, United Kingdom.
Ana Deheer-GrahamNational Collection of Type Cultures, Culture Collections, Public Health England, Salisbury, Wiltshire, United Kingdom.
J Mark SuttonPublic Health England, Microbiology Services Division, Salisbury, Wiltshire, United Kingdom.
Public Health England · GBWellcome Sanger Institute · GB

Funding

Wellcome TrustWellcome Trust WT106690AIA
6 · The paper itself

Abstract

The EGD Murray collection consists of approximately 500 clinical bacterial isolates, mainly Enterobacteriaceae, isolated from around the world between 1917 and 1949. A number of these "Murray" isolates have subsequently been identified as Klebsiella pneumoniae. Antimicrobial susceptibility testing of these isolates showed that over 30% were resistant to penicillins due to the presence of diverse blaSHV β-lactamase genes. Analysis of susceptibility to skin antiseptics and triclosan showed that while the Murray isolates displayed a range of MIC/minimal bactericidal concentration (MBC) values, the mean MIC value was lower than that for more modern K. pneumoniae isolates tested. All Murray isolates contained the cation efflux gene cepA, which is involved in disinfectant resistance, but those that were more susceptible to chlorhexidine were found to have a 9- or 18-bp insertion in this gene. Susceptibility to other disinfectants, e.g., H2O2, in the Murray isolates was comparable to that in modern K. pneumoniae isolates. The Murray isolates were also less virulent in Galleria and had a different complement of putative virulence factors than the modern isolates, with the exception of an isolate related to the modern lineage CC23. More of the modern isolates (41% compared to 8%) are classified as good/very good biofilm formers, but there was overlap in the two populations. This study demonstrated that a significant proportion of the Murray Klebsiella isolates were resistant to penicillins before their routine use. This collection of pre-antibiotic era isolates may provide significant insights into adaptation in K. pneumoniae in relation to biocide susceptibility.

Indexed as

AnimalsAnti-Bacterial Agentsbeta-LactamasesBiofilmsChlorhexidineDisinfectantsHumansKlebsiella InfectionsKlebsiella pneumoniaeMicrobial Sensitivity TestsMothsMutagenesis, InsertionalPenicillin ResistanceTriclosanVirulence FactorsAnti-Bacterial Agentsbeta-LactamasesChlorhexidineDisinfectantsTriclosanVirulence Factors

Identifiers

PMID25896708
PMCPMC4468732
OpenAlexW1996352720

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.