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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Exaltation is defined as -
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The correct answer is  The virulence of a strain is not constant and may undergo spontaneous or induced variations. Enhancement of virulence is known as exaltation Ref Ananthanarayan & paniker's Textbook of Microbiology 9th edition pg no 74