title: COMPARATIVE EVALUATION OF TYPHOID VACCINES PREPARED BY VARIOUS METHODS.
mesh_terms: D000293:Adolescent; D000375:Aging; D000891:Anti-Infective Agents, Local; D001699:Biometry; D002648:Child; D006801:Humans; D012723:Sex; D013223:Statistics as Topic; D014436:Typhoid-Paratyphoid Vaccines; D014586:USSR; D014611:Vaccination; D014881:Water Supply
chemical_list: D000891:Anti-Infective Agents, Local; D014436:Typhoid-Paratyphoid Vaccines
keywords: ADOLESCENCE; AGING; CHILD; SEX; STATISTICS; TYPHOID-PARATYPHOID VACCINES; USSR; VACCINATION; WATER SUPPLY