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目的：分析嗜麦芽窄食单胞菌引起的感染及其抗生素耐药状况。方法：调查1996年3月～1998年12月住院患者标本分离的67株嗜麦芽窄食单胞菌的分布、耐药情况及引起医院感染比例。结果：1289株革兰氏阴性杆菌中嗜麦芽窄食单胞菌居第5位，占5．2％，其中70．1％来自医院感染患者。本菌对多种抗生素耐药率达70％以上。结论：本菌是引起医院感染的常见菌之一，对多种抗生素耐药，临床上应重视抗生素的合理选择。
Objective: To analyze the infection caused by Stenotrophomonas maltophilia and its antibiotic resistance. Methods: The distribution, drug resistance and the proportion of nosocomial infections of 67 strains of Stenotrophomonas maltophilia isolated from inpatients from March 1996 to December 1998 were investigated. Results: Of 1289 Gram-negative bacilli, Stenotrophomonas maltophilia was the fifth, accounting for 5.2%, of which 70.1% were from nosocomial patients. The bacteria resistant to multiple antibiotics over 70%. Conclusion: The bacteria is one of the common bacteria that causes nosocomial infection. It is resistant to many kinds of antibiotics. Clinically, antibiotics should be given a reasonable choice.