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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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Epidemic of polio is due to -
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The correct answer is  Poliovirus tyoe 1 is responsible for most epidemics of paralytic poliomyelitis. Type 3 also causes but to a lesser extent. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:490