8Nagano I, Kunishima M, Itoh Y, et al. Detection of verotoxin-pro- ducing Escherichia coli O157:H7 by multiplex polymerase chain reac- tion[J]. Microbiol Immunol, 1998, 42(2): 371-376.
9Schmidt H., Geitz C., Tarr P.I., et al. Norr O157:H7 pathogenic Shiga- toxirr producing Escherichia coli: phenotypic and genetic profiling of virulence traits and evidence for clonality[J]. J]D, 1999, 179(1): 115-123.
10Menonk V, Garg S R. Inhibitory effect of clove oil on Listeria mono- cytogenesin meat and cheese [J]. Food Microbiology, 2001, 18(6): 647-650.