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
Whihc of the following is true about meningococcal Meningitis- 
Select and explain. 
A. 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
D: Treatment in the first 2 days can save the life of 95% cases
Answer: D: Treatment in the first 2 days can save the life of 95% cases 
Explanation: 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