• 2022-06-01
    The pathogenic characteristics of enterotoxigenic Escherichia coli shall be excluded:
    A: Adhesion to the epithelial cells of the upper intestinal mucosa
    B: Production of heat and / or heat labile enterotoxins
    C: Toxicity can be transmitted to other E.coli through plasmids
    D: Enterotoxin causes severe damage to mucous membrane