title: Letter: Chloramphenicol-resistant Salmonella typhi.
mesh_terms: D002701:Chloramphenicol / Q000494:pharmacology* / Q000627:therapeutic use; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects; D006801:Humans; D007194:India; D008800:Mexico; D012485:Salmonella typhi / Q000187:drug effects*; D014295:Trimethoprim / Q000494:pharmacology; D014435:Typhoid Fever / Q000453:epidemiology / Q000382:microbiology; D006113:United Kingdom; D014744:Vietnam
chemical_list: D002701:Chloramphenicol; D014295:Trimethoprim