Xavier and Yogender stay in the same hostel of the same university. Xavier develops infection with Group B meningococcus. After a few days, Yogender develops infection due to Group C meningococcus. All the following are true statements except: (A) Vaccine prophylaxis of contacts of Xavier, (B) Educate students about meningococcal transmission and take preventive measures, (C) Chemoprophylaxis against both Group B and Group C, (D) Vaccine prophylaxis of contacts of Yogender
Answer is A. No vaccine prophylaxis can be given to contacts of Xavier as there is no effective vaccine available for Group B Meningococcus.