Evidence map›Paper›PMID 34485958›Full record

Observational studyThe Lancet. Microbe2021

Defining nosocomial transmission of

Catherine Ludden, Francesc Coll, Theodore Gouliouris, Olivier Restif, Beth Blane, Grace A Blackwell, Narender Kumar, Plamena Naydenova, Charles Crawley, Nicholas M Brown and 2 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in The Lancet. Microbe, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
4.6field-weighted citation impact, top 3% 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

60 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
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  8. Integrated study on the occurrence and genomic features ofApplied and environmental microbiology · 2026
    Article
  9. Review
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  17. ESBL-producingOne health (Amsterdam, Netherlands) · 2025
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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

12 authors at 5 institutions in 1 country.

Catherine LuddenDepartment of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
Francesc CollDepartment of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
Theodore GouliourisDepartment of Medicine, University of Cambridge, Cambridge, UK.
Olivier RestifDepartment of Veterinary Medicine, University of Cambridge, Cambridge, UK.
Beth BlaneDepartment of Medicine, University of Cambridge, Cambridge, UK.
Grace A BlackwellEMBL-EBI, Wellcome Trust Sanger Institute, Hinxton, UK.
Narender KumarDepartment of Medicine, University of Cambridge, Cambridge, UK.
Plamena NaydenovaDepartment of Medicine, University of Cambridge, Cambridge, UK.
Charles CrawleyCambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
Nicholas M BrownCambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
Julian ParkhillDepartment of Veterinary Medicine, University of Cambridge, Cambridge, UK.
Sharon J PeacockDepartment of Medicine, University of Cambridge, Cambridge, UK.
University of Cambridge · GBCambridge University Hospitals NHS Foundation Trust · GBLondon School of Hygiene & Tropical Medicine · GBPublic Health England · GBWellcome Sanger Institute · GB

Funding

Department of HealthWellcome Trust 103387/Z/13/ZWellcome Trust 110243Wellcome Trust 201344
6 · The paper itself

Abstract

background

methodsIn this prospective observational cohort study, patients were admitted to two adult haematology wards at the Cambridge University Hospitals NHS Foundation Trust in England. Patients aged 16 years and older who were treated for haematological malignancies were included. Stool samples were collected from study participants on admission, once per week, and at discharge. We sequenced multiple

findingsWe recruited 174 (51%) of 338 adult patients admitted to the wards between May 13 and Nov 13, 2015. We obtained and cultured 376 stool samples from 149 patients, of which 152 samples from 97 (65%) patients grew

interpretationWe provide evidence of bacterial transmission and endogenous infection during routine care by integrating genomic and epidemiological data and by determining a genetic cutoff informed by within-host diversity in the studied population. Our findings challenge single colony-based investigations, and the widely accepted notion of plasmid spread.

fundingUK Department of Health, Wellcome Trust, UK National Institute for Health Research.

Indexed as

Cross InfectionEscherichia coli InfectionsAdultAnti-Bacterial Agentsbeta-LactamasesDrug Resistance, BacterialEscherichia coliGenomicsHumansProspective StudiesAnti-Bacterial Agentsbeta-Lactamases

Identifiers

PMID34485958
PMCPMC8410606
OpenAlexW3182861434

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.