title: Further characterization of the Salmonella typhi Ty21a vaccine strain.
authors: S J
authors: SJ
authors: Cryz
authors: E
authors: E
authors: Fürer
mesh_terms: D001426:Bacterial Proteins / Q000032:analysis*; D004196:Disease Outbreaks; D006801:Humans; D012485:Salmonella typhi / Q000276:immunology*; D014435:Typhoid Fever / Q000453:epidemiology / Q000517:prevention & control*; D014436:Typhoid-Paratyphoid Vaccines
chemical_list: D001426:Bacterial Proteins; D014436:Typhoid-Paratyphoid Vaccines