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院内获得性肺炎（院内肺炎）在医院内感染中发病率居首位［１］，引起感染的病原菌以革兰氏阴性（Ｇ－）杆菌为主，国内报道占８０％～８８． ５％［２、３］。我院１９７７～１９９８年发生院内获得性Ｇ~－杆菌肺炎３２例，现分析如下，并探讨其诱发因素，提出相应的预防和控
Hospital-acquired pneumonia (nosocomial pneumonia) ranks the highest among hospital-acquired infections [1]. Gram-negative (G-) bacilli are the main pathogens causing infection, accounting for 80% to 88% of the reported cases in the country. 5% [2,3]. In our hospital from 1977 to 1998 in 32 cases of acquired G ~ - bacilli pneumonia, are analyzed as follows, and explore the factors that induce the proposing of the corresponding prevention and control