Evidence map›Paper›PMID 19275496›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2009

Campylobacter genotyping to determine the source of human infection.

Samuel K Sheppard, John F Dallas, Norval J C Strachan, Marian MacRae, Noel D McCarthy, Daniel J Wilson, Fraser J Gormley, Daniel Falush, Iain D Ogden, Martin C J Maiden and 1 more

Abstract read
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 206 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
206citing papers in PubMed, 4 pooled it
39.4field-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

206 citing papers in PubMed, 4 syntheses or guidelines pooled it, 394 citations in OpenAlex.

  1. Pooled it
  2. A systematic review of source attribution of human campylobacteriosis using multilocus sequence typing.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2019
    Pooled it
  3. The Burden of Zoonoses in Kyrgyzstan: A Systematic Review.PLoS neglected tropical diseases · 2016
    Pooled it
  4. Pooled it
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  17. Antimicrobial Susceptibility ofVeterinary sciences · 2025
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  19. Virulence and infectious assessment of aMicrobiology spectrum · 2025
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  20. Article

146 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

11 authors at 4 institutions in 3 countries.

Samuel K SheppardDepartment of Zoology, University of Oxford, Oxford, United Kingdom.
John F Dallas
Norval J C Strachan
Marian MacRae
Noel D McCarthy
Daniel J Wilson
Fraser J Gormley
Daniel Falush
Iain D Ogden
Martin C J Maiden
Ken J Forbes
University of Aberdeen · GBUniversity of Oxford · GBNational University of Ireland · IEUniversity of Chicago · US

Funding

Wellcome Trust 047072Wellcome Trust 087622
6 · The paper itself

Abstract

backgroundCampylobacter species cause a high proportion of bacterial gastroenteritis cases and are a significant burden on health care systems and economies worldwide; however, the relative contributions of the various possible sources of infection in humans are unclear.

methodsNational-scale genotyping of Campylobacter species was used to quantify the relative importance of various possible sources of human infection. Multilocus sequence types were determined for 5674 isolates obtained from cases of human campylobacteriosis in Scotland from July 2005 through September 2006 and from 999 Campylobacter species isolates from 3417 contemporaneous samples from potential human infection sources. These data were supplemented with 2420 sequence types from other studies, representing isolates from a variety of sources. The clinical isolates were attributed to possible sources on the basis of their sequence types with use of 2 population genetic models, STRUCTURE and an asymmetric island model.

resultsThe STRUCTURE and the asymmetric island models attributed most clinical isolates to chicken meat (58% and 78% of Campylobacter jejuni and 40% and 56% of Campylobacter coli isolates, respectively), identifying it as the principal source of Campylobacter infection in humans. Both models attributed the majority of the remaining isolates to ruminant sources, with relatively few isolates attributed to wild bird, environment, swine, and turkey sources.

conclusionsNational-scale genotyping was a practical and efficient methodology for the quantification of the contributions of different sources to human Campylobacter infection. Combined with the knowledge that retail chicken is routinely contaminated with Campylobacter, these results are consistent with the view that the largest reductions in human campylobacteriosis in industrialized countries will come from interventions that focus on the poultry industry.

Indexed as

Models, GeneticAnimalsAnimals, DomesticBayes TheoremCampylobacterCampylobacter coliCampylobacter InfectionsCampylobacter jejuniCattleChickensFecesFood MicrobiologyGenotypeHumansManureMarkov ChainsManure

Identifiers

PMID19275496
PMCPMC3988352
OpenAlexW2146700947

What OpenQuestion holds

Textmetadata
LicenceTDM
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.