title: New bacterial vaccines.
mesh_terms: D001428:Bacterial Vaccines / Q000276:immunology; D006193:Haemophilus influenzae / Q000276:immunology; D006801:Humans; D009345:Neisseria meningitidis / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000276:immunology; D013296:Streptococcus pneumoniae / Q000276:immunology
chemical_list: D001428:Bacterial Vaccines; D011135:Polysaccharides, Bacterial