目的：了解该院呼吸道感染中常见的革兰阴性细菌分离情况及耐药性，以指导临床用药。
Objective: To investigate the distribution and drug resistance of Gram-negative bacteria of respiratory tract infections in our hospital, guide clinical use of antibiotic drugs.
在感染病原体构成中，细菌最常见，以革兰阴性菌为主，其次为真菌，两者合并感染比例高。
The second major pathogens were fungus, and the third, the combination of bacteria and fungus.
入院当天即有细菌定植者11例，入院后发生细菌定植者52例。定植菌以革兰阴性杆菌为主（占62.8%）。
ResultsAmong 183 strains of bacteria isolated from 11 cases at the admission, 52 cases after hospitalization, 62.8% were Gramnegative organisms.
入院当天即有细菌定植者11例，入院后发生细菌定植者52例。定植菌以革兰阴性杆菌为主（占62.8%）。
ResultsAmong 183 strains of bacteria isolated from 11 cases at the admission, 52 cases after hospitalization, 62.8% were Gramnegative organisms.
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