Change search
ReferencesLink to record
Permanent link

Direct link
Disease Dynamics and Bird Migration: Linking Mallards Anas platyrhynchos and Subtype Diversity of the Influenza A Virus in Time and Space
Show others and affiliations
2012 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 7, no 4, e35679- p.Article 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 (delta H-2) 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- p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-178145DOI: 10.1371/journal.pone.0035679ISI: 000305339200096OAI: diva2:542198
Available from: 2012-07-30 Created: 2012-07-30 Last updated: 2013-01-09Bibliographically approved

Open Access in DiVA

fulltext(739 kB)105 downloads
File information
File name FULLTEXT01.pdfFile size 739 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Olsen, Björn
By organisation
Infectious Diseases
In the same journal
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 105 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 300 hits
ReferencesLink to record
Permanent link

Direct link