1. Serogroup W135 meningococcal disease in Hajj pilgrims;Taha;Lancet,2000
2. Meningococcal vaccines: past, present and future;Frasch,1995
3. Meningococcal disease, serogroup W135;Wkly Epidemiol Rec,2001
4. The effect of meningococcal group A and C polysaccharide vaccine on nasopharyngeal carrier state;Stroffolini;Microbiologica,1990
5. Control of meningococcal disease: guidance for consultants in Communicable Disease Control;Begg;CDR Rev,1995