title: Size of the immunizing dose and postvaccination immunity to typhoid and paratyphoid B from the results of controlled field trials.
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D007109:Immunity; D007115:Immunization Schedule; D010284:Paratyphoid Fever / Q000276:immunology; D014435:Typhoid Fever / Q000276:immunology; D014436:Typhoid-Paratyphoid Vaccines / Q000008:administration & dosage*; D014586:USSR
chemical_list: D014436:Typhoid-Paratyphoid Vaccines