Methods:Salmonella typhi strains cultivated which were collected from blood or stool.The MICs were tested with chloramphenicol, SMZ, kanamycin, tetracycline and ampicilin.

• 方法：收集经血培养或大便培养证实为伤寒杆菌的菌株，用氯霉素、卡那霉素、四环素、氨苄西林等作药物敏感试验。