title: Study on the Vi-antigen localization and its structure.
mesh_terms: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D001419:Bacteria / Q000648:ultrastructure*; D004926:Escherichia coli / Q000648:ultrastructure; D011135:Polysaccharides, Bacterial; D012482:Salmonella paratyphi A / Q000648:ultrastructure; D012485:Salmonella typhi / Q000648:ultrastructure
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D011135:Polysaccharides, Bacterial