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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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Most common age group affected by streptococcus pyogenes -
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The correct answer is  Ans. is 'b' i.e., 5 - 15 years o Sore throat (tonsillitis) is the most common manifestation of streptococcal infection and affects 5-15 years age group.