title: Conference on the Pneumococcus: summary and comments.
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000627:therapeutic use; D004812:Epidemiologic Methods; D006801:Humans; D011008:Pneumococcal Infections / Q000209:etiology / Q000276:immunology*; D011135:Polysaccharides, Bacterial / Q000276:immunology; D013296:Streptococcus pneumoniae / Q000648:ultrastructure*
chemical_list: D001428:Bacterial Vaccines; D011135:Polysaccharides, Bacterial