Microbiology General 17a72ddc A major step in the pathogenesis of listeriosis is ? A The formation of antigen-antibody complexes with resultant complement activation and tissue damage B The release of hyaluronidase by L. monocytogenes, which contributes to its dissemination from local sites C The antiphagocytic activity of the L. monocytogenes capsule D The survival and multiplication of L. monocytogenes within mononuclear phagocytes and host epithelial cells High-Yield Explanation Ans. is 'd' i.e., Survival and multiplication of L. monocytogens within mononuclear phagocytes and host epithelial cells