The most common Enterobacteriaceae were Escherichia coli,Klebsiella pneumoiae,Enterobacter cloacae,Proteus and Serratia.

• 5年间,最常见的肠杆菌科细菌为大肠埃希菌、肺炎克雷伯菌、阴沟肠杆菌、变形杆菌属、沙雷菌属。