Indicated for the active immunization of children from 2 years of age, adolescents and adults against meningococcal disease caused by meningococci of serogroups A, C, W135 and Y. The vaccine may also be used for: Subjects who are living in closed communities and close contacts of patients with disease caused by meningococci of serogroups A, C, W135 and Y. Travellers to countries where the disease is epidemic or highly endemic.