Article
Genetic characterization of H3N2 influenza viruses isolated from pigs in North America, 1977-1999: evidence for wholly human and reassortant virus genotypes.
Virus research - 1 Jun 2000
Karasin A I, Schutten M M, Cooper L A, Smith C B, Subbarao K, Anderson G A, Carman S, Olsen C W
Abstract excerpt
Since 1998, H3N2 viruses have caused epizootics of respiratory disease in pigs throughout the major swine production regions of the U.S. These outbreaks are remarkable because swine influenza in North America had previously been caused almost exclusively by H1N1 viruses. We sequenced the full-length protein coding regions of all eight RNA segments from four H3N2 viruses that we isolated from pigs in the...
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