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Volume 13, Number 3—March 2007

Surveillance of Influenza Virus A in Migratory Waterfowl in Northern Europe

Anders Wallensten*†, Vincent J. Munster‡, Neus Latorre-Margalef§, Mia Brytting¶, Johan Elmberg#, Ron A.M. Fouchier‡, Thord Fransson**, Paul D. Haemig§, Malin Karlsson¶, Åke Lundkvist¶, Albert D.M.E. Osterhaus‡, Martin Stervander††, Jonas Waldenström§‡‡, and Björn Olsen§§§Comments to Author 
Author affiliations: *Smedby Health Center, Kalmar, Sweden; †Linköping University, Linköping, Sweden; ‡Erasmus Medical Center, Rotterdam, the Netherlands; §Kalmar University, Kalmar, Sweden; ¶Swedish Institute for Infectious Disease Control, Solna, Sweden; #Kristianstad University, Kristianstad, Sweden; **Swedish Museum of Natural History, Stockholm, Sweden; ††Ottenby Bird Observatory, Degerhamn, Sweden; ‡‡Lund University, Lund, Sweden; §§Umeå University, Umeå, Sweden;

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Table 2

Number of processed samples and influenza A virus prevalence in waterfowl (Anatidae) sampled at Ottenby Bird Observatory, 2002–2005

SpeciesSpringFallTotalNo. positivePrevalence, %
English nameScientific name
Mute swanCygnus olor99
Greylag gooseAnser anser213
Barnacle gooseBranta leucopsis66
Brent gooseB. bernicla1212
Common shelduckTadorna tadorna5047511142.7
Eurasian wigeonAnas penelope1616
GadwallA. strepera112
Eurasian tealA. crecca184462812.9
MallardA. platyrhynchos9503,1564,10657514.0
Northern pintailA. acuta22830310.0
Common pochardAythya ferina22
Tufted duckA. fuligula1818
Common eiderSomateria mollissima1515
Long-tailed duckClangula hyemalis11
GoldeneyeBucephala clangula33
Red-breasted merganser
Mergus serrator



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Page updated: June 29, 2010
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