1. I Meningococcal Disease Surveillance Group. Menigococcal disease; secondary attack rate and chemoprophylaxis in the United States;JAMA,1974
2. WilsonHD. Prophylaxisinbacterialmeningitis.ArchDi Child 1981;56:817-9.
3. Immunological investigations in meningococcal disease. III. Brevity of group C acquisition prior to disease occurrence;Edwards, E.A.; Devin, e L.F.; Sengbusch, C.H.; Ward, H.W.;ScandlInfect Dis,1977
4. Eradication of camiage of Neisseria meningitidis in families: a study in Brazil;Munford, R.S.; de Vasconcelos, Z.J.S.; Phillips, C.J.;7 Infect Dis,1974
5. Prevention of secondary cases of meningococcal disease in household contacts by vaccination;Greenwood, B.M.; Hassan-King, M.; Whittle, H.C.;BrMedJ,1978