This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology Pa 1 (History, Microscopy, Stains and Structure and Physiology of Bacteria), Subject name: Microbiology
[{'content': 'Exaltation is: \nSelect and explain. \nA. Decreased virulence, B. Increased virulence, C. Increased susceptibility to antimicrobials, D. Loss of virulence', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Exaltation - increased virulence Attenuation - Decreased virulence Attenuation is used in producing vaccines.', 'role': 'assistant'}]