Article
Different evolutionary trajectories of European avian-like and classical swine H1N1 influenza A viruses.
Journal of virology - 1 Jun 2009
Dunham Eleca J, Dugan Vivien G, Kaser Emilee K, Perkins Sarah E, Brown Ian H, Holmes Edward C, Taubenberger Jeffery K
Abstract excerpt
In 1979, a lineage of avian-like H1N1 influenza A viruses emerged in European swine populations independently from the classical swine H1N1 virus lineage that had circulated in pigs since the Spanish influenza pandemic of 1918. To determine whether these two distinct lineages of swine-adapted A/H1N1 viruses evolved from avian-like A/H1N1 ancestors in similar ways, as might be expected given their common host...
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