2Shinde V, Bridges CB, Uyeki TM, et al. Triple-Reassortant Swine Influenza A (H!) in Humans in the United States, 2005- 2009[J]. N Engl J Med, 2009,360(25) :2616-2625.
3Fatimah S,Jain S,Finelli L, et al. Emergence of a Novel SwineOrigin Influenza A (H1NI) Virus in Humans[J1. N Engl J Med, 2009,360(25) :2605-2615.
4Trifonov V, Khiabanian H, Greenbaum B, et al. The origin of the recent swine infuenza A( H1N1 ) virus infecting human[J].Euro Surveill, 2009 30,14(17) ,19193.
5Garten RJ, Davis CT, Russell CA, et al. Antigenic and Genetic Characteristics of Swine-Origin 2009 A( H1 N1 ) Influenza Viruses Circulating in Humans [ J ]. Science, 2009,325 ( 5937 ) : 197- 201.
6Conenello GM, Zamarin D, Perrone LA, et al. A single mutation in the PB1-F2 of H5NI (HK/97) and 1918 influenza A viruses contributes to increased virulence [ J ]. PLoS Pathog, 2007,3 (10) :1414-1421.
7Steel J, Lowen AC, Mubareka S, et al. Transmission of influenza virus in a mammalian host is increased by PB2 amino acids 627K or 627E/701N[ J]. PLoS Pathog, 2009,5( 1 ) :e1000252.
8Zamarin D, Ortigoza MB, Palese P. Influenza A virus PB1-F2 protein contributes to viral pathogenesis in mice [J]. J Virol, 2006,80(16) :7976-7983.
9Jackson D, Hossain M J, Hickman D, et al. A new influenza virus virulence determinant: the NS1 protein four C-terminal residues modulate pathogenicity [J]. Proc Natl Acad Sci USA, 2008,105 ( 11 ) :4381-4386.
10Lau SK, Chan KH, Yip CC, et al. Confirmation of the first Hong Kong case of human infection by novel swine-origin influenza A ( H1 N1 ) virus using ultra-rapid & real-time RT-PCR [ J ]. Clin Microbio1,2009,47 ( 7 ) :2344-2346.
