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%）。

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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%）。

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