This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Whihc of the following is true about meningococcal Meningitis- \nSelect and explain. \nA. Case fatality less than 10% in untreated cases, B. Cases are main source of infection, C. Rifampicin is the Drug of choice, D. Treatment in the first 2 days can save the life of 95% cases', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Park&;s texbook of Preventive and Social Medicine 23rd edition Page no:165 - 166 Fatality of typical untreated cases is about 80% Carriers are the most impoant source of infection. Clinical cases present only a negligible source of infection Penicillin is the drug of choice', 'role': 'assistant'}]