title: Purified Vi antigens as possible typhoid vaccines.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000302:isolation & purification*; D001428:Bacterial Vaccines / Q000633:toxicity; D002954:Citrobacter / Q000276:immunology; D004926:Escherichia coli / Q000276:immunology; D005260:Female; D007114:Immunization; D007117:Immunization, Secondary; D007928:Lethal Dose 50; D051379:Mice; D011749:Pyrogens / Q000032:analysis; D011817:Rabbits; D012485:Salmonella typhi / Q000276:immunology*; D014436:Typhoid-Paratyphoid Vaccines / Q000302:isolation & purification*; D014774:Virulence
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D011749:Pyrogens; D014436:Typhoid-Paratyphoid Vaccines