| isolation and genetic analysis of human origin h1n1 and h3n2 influenza viruses from pigs in china. | influenza a viruses of subtypes h1n1 and h3n2 have been reported widely in pigs, associated with clinical disease. these mainly include classical swine h1n1, avian-like h1n1, and human-like or avian-like h3n2 viruses. from 2005 to 2006, we carried out swine influenza virus surveillance in eight provinces of china. here we report, for the first time, the isolation and genetic analysis of a human-like influenza h1n1 virus from a pig in a farm of guangdong province of southern china, a host suspect ... | 2007 | 17346674 |