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Disease Dynamics and Bird Migration – Linking Mallards Anas platyrhynchos and subtype diversity of Influenza A Virus in Time and Space
Kristianstad University.
Linnaeus University, Faculty of Science and Engineering, School of Natural Sciences.
Environment Canada, Saskatoon, Canada.
Environment Canada, Saskatoon, Canada.
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2012 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 7, no 4, e35679Article in journal (Refereed) Published
Abstract [en]

The mallard Anas platyrhynchos is a reservoir species for influenza A virus in the northern hemisphere, with particularly high prevalence rates prior to as well as during its prolonged autumn migration. It has been proposed that the virus is brought from the breeding grounds and transmitted to conspecifics during subsequent staging during migration, and so a better understanding of the natal origin of staging ducks is vital to deciphering the dynamics of viral movement pathways. Ottenby is an important stopover site in southeast Sweden almost halfway downstream in the major Northwest European flyway, and is used by millions of waterfowl each year. Here, mallards were captured and sampled for influenza A virus infection, and positive samples were subtyped in order to study possible links to the natal area, which were determined by a novel approach combining banding recovery data and isotopic measurements (d2 H) of feathers grown on breeding grounds. Geographic assignments showed that the core natal areas of studied mallards were in Estonia, southern and central Finland, and northwestern Russia. This study demonstrates a clear temporal succession of latitudes of natal origin during the course of autumn migration. We also demonstrate a corresponding and concomitant shift in virus subtypes. Acknowledging that these two different patterns were based in part upon different data, a likely interpretation worth further testing is that the early arriving birds with more proximate origins have different influenza A subtypes than the more distantly originating late autumn birds. If true, this knowledge would allow novel insight into the origins and transmission of the influenza A virus among migratory hosts previously unavailable through conventional approaches.

Place, publisher, year, edition, pages
2012. Vol. 7, no 4, e35679
National Category
Ecology
Research subject
Ecology, Zoonotic Ecology
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URN: urn:nbn:se:lnu:diva-63771DOI: 10.1371/journal.pone.0035679OAI: oai:DiVA.org:lnu-63771DiVA: diva2:1094914
Available from: 2017-05-11 Created: 2017-05-11 Last updated: 2017-05-15Bibliographically approved

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Latorre-Margalef, NeusWaldenström, 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
  • html
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  • asciidoc
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