Klebsiella was the most frequent pathogen in 310 strains. Enterobacter(14.1%),Escherichia coli(10.3%),Acinetobacter(6.7%) and Serratia(5.2%) had lower isolation rate.

• 儿科病房分离310株革兰阴性杆菌中；以克雷伯菌属(49.；1%25)多见；肠杆菌属(14