This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impoant Viral Diseases in Children, Subject name: Pediatrics
[{'content': 'Chronic carrier state is seen in all, EXCEPT: \nSelect and explain. \nA. Measles, B. Diphtheria, C. Typhoid, D. Gonorrhoea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Chronic carrier state is rare in Measles', 'role': 'assistant'}]