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
Vaccine prophylaxis of contacts of Xavier Educate students about meningococcal transmission and take preventive measures Chemoprophylaxis against both Group B and Group C Vaccine prophylaxis of contacts of Yogender