Article
Continued evolution of H1N1 and H3N2 influenza viruses in pigs in Italy.
Virology - 9 Jun 1997
Campitelli L, Donatelli I, Foni E, Castrucci M R, Fabiani C, Kawaoka Y, Krauss S, Webster R G
Abstract excerpt
Swine influenza viruses possessing avian genes were first detected in Europe in 1979 (Scholtissek et al., 1983, Virology, 129, 521-523) and continue to circulate in pigs in that region of the world. To characterize the molecular epidemiology of swine influenza viruses currently circulating in Europe, we used dot-blot hybridization and sequence analysis to determine the origin of the genes encoding the nonsurface...
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