Evidence map›Paper›PMID 30307935›Full record

SynthesisPLoS neglected tropical diseases2018

A systematic review of antimicrobial resistance in Salmonella enterica serovar Typhi, the etiological agent of typhoid.

Carl D Britto, Vanessa K Wong, Gordan Dougan, Andrew J Pollard

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 4 pooled it
19.7field-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

98 citing papers in PubMed, 4 syntheses or guidelines pooled it, 190 citations in OpenAlex.

  1. Pooled it
  2. Prevalence of fluoroquinolone-resistantPathogens and global health · 2020
    Pooled it
  3. Pooled it
  4. A systematic review of antimicrobial resistance of typhoidalThe Indian journal of medical research · 2019
    Pooled it
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Development and evaluation of an indigenousIranian journal of microbiology · 2026
    Article
  10. Review
  11. Article
  12. Review
  13. Microorganisms · 2026
    Review
  14. Genomic analysis ofMicrobial genomics · 2026
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

38 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Carl D BrittoOxford Vaccine Group, Department of Paediatrics, University of Oxford and the NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom.ORCID 0000-0002-1674-8801
Vanessa K WongWellcome Trust Sanger Institute and the Department of Medicine, Cambridge University, Cambridge, United Kingdom.
Gordan DouganWellcome Trust Sanger Institute and the Department of Medicine, Cambridge University, Cambridge, United Kingdom.
Andrew J PollardOxford Vaccine Group, Department of Paediatrics, University of Oxford and the NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom.
University of Cambridge · GBUniversity of Oxford · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundThe temporal and spatial change in trends of antimicrobial resistance (AMR) in typhoid have not been systematically studied, and such information will be critical for defining intervention, as well as planning sustainable prevention strategies. METHODOLOGY AND

findingsTo identify the phenotypic trends in AMR, 13,833 individual S. Typhi isolates, reported from 1973 to 2018 in 62 publications, were analysed to determine the AMR preponderance over time. Separate analyses of molecular resistance determinants present in over 4,000 isolates reported in 61 publications were also conducted. Multi-drug resistant (MDR) typhoid is in decline in Asia in a setting of high fluoroquinolone resistance while it is on the increase in Africa. Mutations in QRDRs in gyrA (S83F, D87N) and parC (S80I) are the most common mechanisms responsible for fluoroquinolone resistance. Cephalosporin resistant S. Typhi, dubbed extensively drug-resistant (XDR) is a real threat and underscores the urgency in deploying the Vi-conjugate vaccines.

conclusionFrom these observations, it appears that AMR in S. Typhi will continue to emerge leading to treatment failure, changes in antimicrobial policy and further resistance developing in S. Typhi isolates and other Gram-negative bacteria in endemic regions. The deployment of typhoid conjugate vaccines to control the disease in endemic regions may be the best defence.

Indexed as

Drug Resistance, BacterialAnti-Bacterial AgentsGenes, BacterialGenotypeGlobal HealthHumansPhenotypeSalmonella typhiTyphoid FeverAnti-Bacterial Agents

Identifiers

PMID30307935
PMCPMC6198998
OpenAlexW2895796856

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.