| isolation and genetic characterization of avian origin h9n2 influenza viruses from pigs in china. | as pigs are susceptible to infection with both avian and human influenza a viruses, they have been proposed to be an intermediate host for the adaptation of avian influenza viruses to humans. in april 2006, a disease caused by highly pathogenic porcine reproductive and respiratory syndrome virus (prrsv) occurred in several pig farms and subsequently overwhelmed almost half of china with more than 2,000,000 cases of pig infection. here we report a case in which four swine h9n2 influenza viruses w ... | 2008 | 18403137 |
| sequence analysis of the nsp2, orf5, and orf7 genes of 11 prrs virus isolates from china. | during a tracing investigation of blue ear disease in china conducted from january to november 2008, 11 porcine reproductive and respiratory syndrome virus (prrsv) isolates were collected from eight provinces including liaoning, jilin, hebei, shandong, henan, shanghai, zhejiang, and guangxi. the complete gene sequences of the nsp2, orf5, and orf7 genes from these 11 prrsv isolates were amplified, cloned and detected by rt-pcr and then compared with the published sequences of other strains. the r ... | 2012 | 22644762 |