6Blackall P J, Christensen H,Beckenham T,et al. Reclassification of Pasteurella gallinarum, [Haemophilus] paragallinarum, Pasteu- rella avium and Pasteurella volantium as Avibacterium gallinarum gen. nov., comb. nov.,Avibaeterium paragallinarum comb. nov., Avibacterium avium Colnb. nov. and Avibacterium volantium comb. Nov[J]. Int J Syst Evol Microbiol,2005,55:353-362.
7Blackall P J,Matsumoto M,Yamamoto R. Infectious Coryza [M]//Calnek B W,Barnes H J,Beard C W,et al. Diseases of Poultry. 10th Edn. Ames: Iowa State University Press, 1997.
8Horner R F,Bishop G C,Haw C. An upper respiratory dis- ease of commercial chickens resembling infectious coryza, but caused by a V-factor independent bacterium[J]. Avian Pathol, 1992,21:421-427.
9Mouahid M, Bisgaard M, Morley A J, et al. Occurrence of V-factor (NAD) independent strains of Haemophilus paragallina- rum[J]. Vet Microbiol, 1992,31:363-368.
10Zhang P, Miao D, Sun H, et al. Infectious coryza due to Haemophilus paragallinarum serovar B in China[J].J Aus Vet, 2003,81 : 96-97.
