The immunological responses observed in field studies in Africa with group A meningococcal vaccines.

Adolescent Adult Africa Antibodies, Bacterial/analysis Bacterial Vaccines/administration & dosage,analysis Child Child, Preschool Chromatography, Gel Humans Immunologic Techniques Infant Injections, Intradermal Meningococcal Infections/prevention & control Neisseria meningitidis/immunology Polysaccharides, Bacterial/administration & dosage,analysis Vaccination

Antibodies, Bacterial Bacterial Vaccines Polysaccharides, Bacterial