定植菌以革兰阴性杆菌为主，亚胺培南对所用抗菌药物中最敏感。
Primary colonization bacteria were Gram-negative bacteria. Imipenem was the most sensitive antimicrobial drug in use at present.
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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