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Marked host specificity and lack of phylogeographic population structure of Campylobacter jejuni in wild birds
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
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2013 (English)In: Molecular Ecology, ISSN 0962-1083, E-ISSN 1365-294X, Vol. 22, no 5, 1463-1472 p.Article in journal (Refereed) Published
Abstract [en]

Zoonotic pathogens often infect several animal species, and gene flow among populations infecting different host species may affect the biological traits of the pathogen including host specificity, transmissibility and virulence. The bacterium Campylobacter jejuni is a widespread zoonotic multihost pathogen, which frequently causes gastroenteritis in humans. Poultry products are important transmission vehicles to humans, but the bacterium is common in other domestic and wild animals, particularly birds, which are a potential infection source. Population genetic studies of C. jejuni have mainly investigated isolates from humans and domestic animals, so to assess C. jejuni population structure more broadly and investigate host adaptation, 928 wild bird isolates from Europe and Australia were genotyped by multilocus sequencing and compared to the genotypes recovered from 1366 domestic animal and human isolates. Campylobacter jejuni populations from different wild bird species were distinct from each other and from those from domestic animals and humans, and the host species of wild bird was the major determinant of C. jejuni genotype, while geographic origin was of little importance. By comparison, C. jejuni differentiation was restricted between more phylogenetically diverse farm animals, indicating that domesticated animals may represent a novel niche for C. jejuni and thereby driving the evolution of those bacteria as they exploit this niche. Human disease is dominated by isolates from this novel domesticated animal niche.

Place, publisher, year, edition, pages
2013. Vol. 22, no 5, 1463-1472 p.
Keyword [en]
disease emergence, epidemiology, host associations, Zoonotic disease
National Category
Microbiology
Research subject
Natural Science, Zoonotic Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-25222DOI: 10.1111/mec.12144ISI: 000315414700020OAI: oai:DiVA.org:lnu-25222DiVA: diva2:615479
Available from: 2013-04-10 Created: 2013-04-05 Last updated: 2015-12-04Bibliographically approved

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Griekspoor, PetraOlsen, BjörnWaldenström, Jonas
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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