引起医院感染最重要的传播途径 ,是各种直接接触患者的器具物体表面染菌 ,对此我们进行专门调查。1　资　料1997～ 1998年 ,对内外科病区及急诊室所用的氧气湿化瓶内壁及内导管消毒后进行细菌及微生物本底抽查 ,采集标本 5 0份 ,做物体表面的细菌监测。2　结　果5 0份中出现部 The most important route of transmission that causes nosocomial infections is the contamination of the surfaces of various objects that come in direct contact with the patient, and we conduct a special investigation. 1 Data From 1997 to 1998, bacterial and microbiological background tests were performed on the inner wall of the oxygen humidifying bottle and the inner catheter used in the internal and external ward and emergency room. Fifty samples were collected to monitor bacteria on the surface of the object. 2 results 5 0 appeared in the Ministry