1. WHO. Prevention and control of epidemic meningococcal disease in Africa. Report of a WHO technical consultation meeting, Ouagadougou, Burkina Faso, 23–24 September 2002. Geneva: World Health Organization (WHO/CDS/CSR/GAR/2003.10) 2003.
2. WHO. Enhanced surveillance of epidemic meningococcal meningitis in Africa: a three-year experience. World Health Organ WER 16 September 2005; 80: 313–320. http://www.who.int/wer/2005/wer8037.pdf.
3. WHO, International Coordinating Group (ICG) on Vaccine Provision (1997). www.who.int/csr/disease/meningococcal/icg/en/.
4. WHO. Communicable Disease Surveillance and Response. Meningococcal disease surveillance in the African meningitis belt, Update 7. Geneva: World Health Organization WHO; 2001. http://www.who.int/disease-outbreak-news/n2001/april/23april2001.html.
5. Meningococcal meningitis in sub-Saharan Africa: the case for mass and routine vaccination with available polysaccharide vaccines;Robbins;Bull World Health Organ,2003