对住院病人和环境中分离的绿脓杆菌进行血清学分型，前者以２型和６型为主，占８６．８％，后者也以２、６型为主，占３７．１％，两者均以２、６型占绝对优势，联系极为密切，且病区环境中的绿脓杆菌主要集中在吸收瓶、水池、地面、麻醉机和呼吸机等处，最易引起院内感染的地方，认为医院感染与环境和插入性器械的使用密切相关 The serotypes of inpatients and Pseudomonas aeruginosa isolated from the environment were serotyped with type 2 and type 6, accounting for 86.8% and type 2 and type 6 accounting for 37.1% and two Type 2,6 accounted for the absolute advantage, the connection is extremely close, and ward environment Pseudomonas aeruginosa mainly in the absorption of bottles, pools, floors, anesthesia machines and ventilators, etc., the most likely to cause nosocomial infections, It is believed that nosocomial infections are closely related to the use of the environment and insertion devices