title: Live oral Ty 21a--typhoid vaccine.
authors: R S
authors: RS
authors: Bhatia
mesh_terms: D000284:Administration, Oral; D006801:Humans; D014435:Typhoid Fever / Q000517:prevention & control*; D014436:Typhoid-Paratyphoid Vaccines
chemical_list: D014436:Typhoid-Paratyphoid Vaccines