Mucous membranes are barriers against colonization and growth of microorganisms. However, mucous membranes, for example in the mouth and gut, are colonized with a variety of different microorganisms, some of which are potential pathogens. Explain how these potential pathogens are controlled under normal circumstances. Then describe at least one set of circumstances that might encourage pathogenicity.
Answer to relevant QuestionsCoagulase is a virulence factor for Staphylococcus aureus that acts by causing clot formation at the site of S. aureus growth. Streptokinase is a virulence factor for Streptococcus pyogenes that acts by dissolving clots at ...Identify the lymphocytes and the antigen-specific receptors involved in cell-mediated adaptive immunity. Are superantigen reactions desirable for the host? Do they confer protection for the host or do they benefit the pathogen? Identify the cell interactions in production of antibodies by B cells. Polymorphism implies that each different MHC protein binds a different peptide motif. For the MHC class I polymorphisms, how many different MHC proteins are expressed in an individual? By the entire human population?
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