title: Pneumococcal serotypes in West Africa.
mesh_terms: D000942:Antigens, Bacterial / Q000302:isolation & purification; D006801:Humans; D008585:Meningitis, Meningococcal / Q000382:microbiology*; D009549:Nigeria; D011018:Pneumonia, Pneumococcal / Q000382:microbiology*; D012675:Senegal; D012703:Serotyping / Q000379:methods; D013296:Streptococcus pneumoniae / Q000276:immunology / Q000302:isolation & purification*
chemical_list: D000942:Antigens, Bacterial