title: Typhoid carriers.
mesh_terms: D000667:Ampicillin / Q000627:therapeutic use; D002353:Carrier State / Q000517:prevention & control*; D002701:Chloramphenicol / Q000627:therapeutic use; D006801:Humans; D014435:Typhoid Fever / Q000517:prevention & control*
chemical_list: D002701:Chloramphenicol; D000667:Ampicillin