title: Symposium on the current status and prospects for improved and new bacterial vaccines: welcome and introduction.
mesh_terms: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D004352:Drug Resistance, Microbial; D005796:Genes; D007109:Immunity; D010957:Plasmids; D013291:Streptococcus / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines