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
Prophylaxis of meningococcal meningitis is? 
Select and explain. 
A. Ciprofloxacin, B. Rifampicin, C. Penicillin, D. Gentamycin
A: Ciprofloxacin
Answer: A: Ciprofloxacin 
Explanation: The drugs of choice for mass prophylaxis includes ciprofloxacin,minocycline,spiramycin and ceftriaxone Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 176