5Kohler E M. Studies on Eschezichia coli in gnotobiotic pigs[J]. Comp.Med, 1967,31 :278-283.
6Erwin M, Kohler, E H, Bohl. Studies in Escherichia coli enterotoxins[J].Pathol.Bacteriol, 1967,93:53.
7Levine M M. Escherichia coli that cause diarrhea, enterotoxigenic, enteropathogenic, enteroinvasive, enterohemorrhaic and enteroadherent[J]. Inf.Dis., 1987,155:377-389.
8Whittarn T S, Wolfe M L, Wachsmuth K, et al. Clonal Relationships among Escherichia coli Strains That Cause Hemorrhagic Colitis and Infantile Diarrhea.[J]. Infection and Immunity, 1993,61(5): 1619-1629.
9Burgess M N, Bywater R J, Cowley C M, et al. Biological Evaluation of a Methanol-Soluble,Heat-Stable Eseherichia eoli Enterotoxin in Infant Mice,Pigs,Rabbits,and Calves[J].Infection and Immunity, 1978,21 (2):526-531.
10Yokoyama H, Peralta R C, Diaz R, et al. Passive protective effect of chicken egg yolk imunoglobuLins against experimental enterotoxigenic Escherichia coli[J].Infection and Immunity,1992,60: 988-1007.
