1Wigley P, Hulme S D, Bumstead N, et al. In vivo and in vitro studies of genetic resistance to systemic salmonellosis in the chicken encoded by the SAL1 locus[J]. Microbes Infect, 2002,4 : 1111-1120.
2Shivaprasad H L. Fowl typhoid and pullorum disease[J]. Rev Sci Tech, 2000,19:405-424.
3Fields P I, Swanson R V, Haidaris C G, et al. Mutants of Salmonella typhimurium that cannot survive within the macrophage are avirulent [J] . Proceedings of the National Academy of Science USA, 1986,83 : 5189-5193.
4Kuhle V, Hensel M. Cellular microbiology of intracellular Salmo- nella enterica : Functions of the type IIIsecrection system encoded by Salmonella pathogenicity island 2[J]. Cell Mol Life Sci, 2004, 61 : 2812-2826.
