Evidence of human-to-swine transmission of the pandemic (H1N1) 2009 influenza virus in South Korea.

ABSTRACT: As the pandemic (H1N1) 2009 influenza virus continues to infect human populations globally, reports on epidemiologically linked animal infections are also on the rise. Since December 2009, pandemic (H1N1) 2009-like viruses have been isolated in pigs from different swine farms of South Korea. Genetic and phylogenetic analyses of viral segments demonstrated several events of human-to-swine transmission with no apparent signs of reassortment. These events were also supported by serological surveillance in pig sera collected from April to December, suggesting that reverse transmission probably started between June and July with a drastic increase in prevalence the following months. Although molecular characterization indicates that the swine isolates are generally stable, some viruses are gene

SUBMITTER: Song MS 

PROVIDER: S-EPMC2937722 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature