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Swine influenza viruses isolated in 1983, 2002 and 2009 in Sweden exemplify different lineages

Acta Veterinaria Scandinavica. 2010;52(1):65 DOI 10.1186/1751-0147-52-65

 

Journal Homepage

Journal Title: Acta Veterinaria Scandinavica

ISSN: 1751-0147 (Online)

Publisher: BMC

Society/Institution: Veterinary Associations of the Nordic Countries

LCC Subject Category: Agriculture: Animal culture: Veterinary medicine

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS


Metreveli Giorgi

Bálint Ádám

Kiss István

Emmoth Eva

Widén Frederik

Belák Sándor

Wallgren Per

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 19 weeks

 

Abstract | Full Text

<p>Abstract</p> <p>Swine influenza virus isolates originating from outbreaks in Sweden from 1983, 2002 and 2009 were subjected to nucleotide sequencing and phylogenetic analysis. The aim of the studies was to obtain an overview on their potential relatedness as well as to provide data for broader scale studies on swine influenza epidemiology. Nonetheless, analyzing archive isolates is justified by the efforts directed to the comprehension of the appearance of pandemic H1N1 influenza virus. Interestingly, this study illustrates the evolution of swine influenza viruses in Europe, because the earliest isolate belonged to 'classical' swine H1N1, the subsequent ones to Eurasian 'avian-like' swine H1N1 and reassortant 'avian-like' swine H1N2 lineages, respectively. The latter two showed close genetic relatedness regarding their PB2, HA, NP, and NS genes, suggesting common ancestry. The study substantiates the importance of molecular surveillance for swine influenza viruses.</p>