This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'In which of the following organism does the capsule does not act as a virulence factor? \nSelect and explain. \nA. H. influenzae, B. Strep pneumoniae, C. N. meningitidis, D. Bordetella peusis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Bordetella peussis Antigenic constituents and Virulence factor of Bordetella Peussis toxin (most impoant) Tracheal cytotoxin Dermonecrotic toxin Lipo oligosoccharide Adenylate cyclase toxin Fimbriae Filamentous hemagglutinin (a component of cell wall) Peactin (an outer membrane protein)', 'role': 'assistant'}]