Evidence map›Paper›PMID 27427203›Full record

Observational studyThe Lancet. Infectious diseases2016

Whole-genome sequencing to determine transmission of Neisseria gonorrhoeae: an observational study.

Dilrini De Silva, Joanna Peters, Kevin Cole, Michelle J Cole, Fiona Cresswell, Gillian Dean, Jayshree Dave, Daniel Rh Thomas, Kirsty Foster, Alison Waldram and 8 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in The Lancet. Infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed, 2 pooled it
21.4field-weighted citation impact, top 1% 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

100 citing papers in PubMed, 2 syntheses or guidelines pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Phenotypic and genotypic characterization ofJAC-antimicrobial resistance · 2026
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  12. A Genomic Perspective on the Near-term Impact of Doxycycline Post-exposure Prophylaxis on Neisseria gonorrhoeae Antimicrobial Resistance.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
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  19. Naturally occurringMicrobial genomics · 2022
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40 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 8 institutions in 2 countries.

Dilrini De Silva *Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Joanna Peters *St George's University Hospitals NHS Foundation Trust, London, UK.
Kevin ColeBrighton and Sussex University Hospitals NHS Trust, Brighton, UK.
Michelle J ColePublic Health England Sexually Transmitted Bacterial Reference Unit, Colindale, London, UK.
Fiona CresswellBrighton and Sussex University Hospitals NHS Trust, Brighton, UK.
Gillian DeanBrighton and Sussex University Hospitals NHS Trust, Brighton, UK.
Jayshree DaveNational Infection Service, Public Health England, UK.
Daniel Rh ThomasCommunicable Disease Surveillance Centre, Public Health Wales, Cardiff, UK.
Kirsty FosterHealth Protection Team, Public Health England North East, UK.
Alison WaldramField Epidemiology Service Newcastle, Public Health England, Newcastle upon Tyne, UK.
Daniel J WilsonNuffield Department of Medicine, University of Oxford, Oxford, UK.
Xavier DidelotDepartment of Infectious Disease Epidemiology, Imperial College, London, UK.
Yonatan H GradDepartment of Immunology and Infectious Diseases, Harvard TH Chan School of Public Health, and Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA, USA.
Derrick W CrookNuffield Department of Medicine, University of Oxford, Oxford, UK.
Tim Ea PetoNuffield Department of Medicine, University of Oxford, Oxford, UK.
A Sarah WalkerNuffield Department of Medicine, University of Oxford, Oxford, UK.
John Paul *National Institute for Health Research Biomedical Research Centre, Oxford, UK.
David W Eyre *Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Public Health England · GBUniversity Hospitals Sussex NHS Foundation Trust · GBUniversity of Oxford · GBNational Institute for Health Research · GBBrigham and Women's Hospital · USImperial College London · GBPublic Health Wales · GBSt George’s University Hospitals NHS Foundation Trust · GB

Funding

Department of Health DRF-2010-03-40Medical Research Council MR/N010760/1Wellcome Trust
6 · The paper itself

Abstract

backgroundNew approaches are urgently required to address increasing rates of gonorrhoea and the emergence and global spread of antibiotic-resistant Neisseria gonorrhoeae. We used whole-genome sequencing to study transmission and track resistance in N gonorrhoeae isolates.

methodsWe did whole-genome sequencing of isolates obtained from samples collected from patients attending sexual health services in Brighton, UK, between Jan 1, 2011, and March 9, 2015. We also included isolates from other UK locations, historical isolates from Brighton, and previous data from a US study. Samples from symptomatic patients and asymptomatic sexual health screening underwent nucleic acid amplification testing; positive samples and all samples from symptomatic patients were cultured for N gonorrhoeae, and resulting isolates were whole-genome sequenced. Cefixime susceptibility testing was done in selected isolates by agar incorporation, and we used sequence data to determine multi-antigen sequence types and penA genotypes. We derived a transmission nomogram to determine the plausibility of direct or indirect transmission between any two cases depending on the time between samples: estimated mutation rates, plus diversity noted within patients across anatomical sites and probable transmission pairs, were used to fit a coalescent model to determine the number of single nucleotide polymorphisms expected.

findings1407 (98%) of 1437 Brighton isolates between Jan 1, 2011, and March 9, 2015 were successfully sequenced. We identified 1061 infections from 907 patients. 281 (26%) of these infections were indistinguishable (ie, differed by zero single nucleotide polymorphisms) from one or more previous cases, and 786 (74%) had evidence of a sampled direct or indirect Brighton source. We observed multiple related samples across geographical locations. Of 1273 infections in Brighton (including historical data), 225 (18%) were linked to another case elsewhere in the UK, and 115 (9%) to a case in the USA. Four lineages initially identified in Brighton could be linked to 70 USA sequences, including 61 from a lineage carrying the mosaic penA XXXIV allele, which is associated with reduced cefixime susceptibility.

interpretationWe present a whole-genome-sequencing-based tool for genomic contact tracing of N gonorrhoeae and demonstrate local, national, and international transmission. Whole-genome sequencing can be applied across geographical boundaries to investigate gonorrhoea transmission and to track antimicrobial resistance.

fundingOxford National Institute for Health Research Health Protection Research Unit and Biomedical Research Centre.

Indexed as

AdultAllelesAnti-Bacterial AgentsCefiximeCephalosporin ResistanceCephalosporinsFemaleGenotypeGonorrheaHumansMaleMicrobial Sensitivity TestsNeisseria gonorrhoeaeRetrospective StudiesSequence Analysis, DNAUnited KingdomAnti-Bacterial AgentsCefiximeCephalosporins

Identifiers

PMID27427203
PMCPMC5086424
OpenAlexW2464636199

What OpenQuestion holds

Textmetadata
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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.