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  • Elfving, KarinUppsala universitet,Klinisk bakteriologi,Department of Clinical Microbiology, Falu Hospital, Falun, Sweden (author)

Dissemination of Spotted Fever Rickettsia Agents in Europe by Migrating Birds

  • Article/chapterEnglish2010

Publisher, publication year, extent ...

  • 2010-01-05
  • Public Library of Science,2010
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:lnu-2152
  • https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-2152URI
  • https://doi.org/10.1371/journal.pone.0008572DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-42617URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-113683URI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:119874214URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Migratory birds are known to play a role as long-distance vectors for many microorganisms. To investigate whether this is true of rickettsial agents as well, we characterized tick infestation and gathered ticks from 13,260 migratory passerine birds in Sweden. A total of 1127 Ixodes spp. ticks were removed from these birds and the extracted DNA from 957 of them was available for analyses. The DNA was assayed for detection of Rickettsia spp. using real-time PCR, followed by DNA sequencing for species identification. Rickettsia spp. organisms were detected in 108 (11.3%) of the ticks. Rickettsia helvetica, a spotted fever rickettsia associated with human infections, was predominant among the PCR-positive samples. In 9 (0.8%) of the ticks, the partial sequences of 17kDa and ompB genes showed the greatest similarity to Rickettsia monacensis, an etiologic agent of Mediterranean spotted fever-like illness, previously described in southern Europe as well as to the Rickettsia sp. IrITA3 strain. For 15 (1.4%) of the ticks, the 17kDa, ompB, gltA and ompA genes showed the greatest similarity to Rickettsia sp. strain Davousti, Rickettsia japonica and Rickettsia heilongjiangensis, all closely phylogenetically related, the former previously found in Amblyomma tholloni ticks in Africa and previously not detected in Ixodes spp. ticks. The infestation prevalence of ticks infected with rickettsial organisms was four times higher among ground foraging birds than among other bird species, but the two groups were equally competent in transmitting Rickettsia species. The birds did not seem to serve as reservoir hosts for Rickettsia spp., but in one case it seems likely that the bird was rickettsiemic and that the ticks had acquired the bacteria from the blood of the bird. In conclusion, migratory passerine birds host epidemiologically important vector ticks and Rickettsia species and contribute to the geographic distribution of spotted fever rickettsial agents and their diseases.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Olsen, BjörnUppsala universitet,Linnéuniversitetet,Institutionen för naturvetenskap, NV,Uppsala University Hospital,Infektionssjukdomar(Swepub:uu)bjool781 (author)
  • Bergström, SvenUmeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten),Department of Molecular Biology, Umeå University(Swepub:umu)svbe0001 (author)
  • Waldenström, JonasUppsala universitet,Linnéuniversitetet,Institutionen för naturvetenskap, NV,Uppsala University Hospital,Infektionssjukdomar(Swepub:lnu)ewajo (author)
  • Lundkvist, ÅkeKarolinska Institutet (author)
  • Sjöstedt, Anders,1957-Umeå universitet,Klinisk bakteriologi,Clinical Bacteriology, Department of Clinical Mic0robiology, Umeå University Hospital(Swepub:umu)ansj0004 (author)
  • Mejlon, HansUppsala universitet,Evolutionsmuseet(Swepub:uu)hansmejl (author)
  • Nilsson, KennethUppsala universitet,Klinisk bakteriologi,Infektionssjukdomar(Swepub:uu)kenil103 (author)
  • Uppsala universitetKlinisk bakteriologi (creator_code:org_t)

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  • In:PLOS ONE: Public Library of Science5:11932-6203

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