5Mounts AW, Kwong H, Izurieta HS, et al. Case-control study of risk factors for avian influenza A (H5N1) disease, Hong kong, 1997. J Infect Dis, 1999, 180(2) : 505.
6Beigel JH, Farrar J, Han AM, et al. Avian influenza A (H5N1) infection in humans. N Engl J Med, 2005, 353(13) .. 1374.
7Matrosovich MN, Matrosovich TY, Gray T, et al. Neuraminidase is important for the initiation of influenza virus infection in human airway epithelium. J Virol, 2004, 78(22) : 12665.
8Webster RG, Yakhno M, Hinshaw VS, et al. Intestinal influenza: replication and characterization of influenza viruses in ducks. Virology, 1978, 84 (2) : 268.
9Okazan K, Takada A, Ito T, et al. Precursor genes of future pandemic influenza viruses are perpetuated in ducks nesting in Siberia. Arch Virol, 2000, 145(5): 885.
10Bulaga LL, Garber L, Serme DA, et al. Epidemiologic and surveillance studies on avian influenza in livebird markets in New York and New Jersey, 2001. Avian Dis, 2003, 47(3 Suppl): 996.