title: Acquisition of resistance by Salmonella typhi in vivo.
mesh_terms: D000293:Adolescent; D000900:Anti-Bacterial Agents / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D011815:R Factors / Q000187:drug effects; D012485:Salmonella typhi / Q000187:drug effects*; D012486:Salmonella typhimurium / Q000187:drug effects; D014435:Typhoid Fever / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents