Resistance of Enterobacter in a Tertiary Hospital and the Isolation of Enterobacter Amnigenus Multiresistant Strain

The aim of this study was to assess the frequency and antimicrobial susceptibility of Enterobacter isolated from clinical specimens of patients in a tertiary hospital. We collected different samples mostly from intensive care units (ICU), including sputum, central venous catheters, samples from infected surgical sites, from endotracheal and urethral catheters. Disk diffusion test was used to study the antimicrobial resistance. The predominant strains were E. cloacae 82 (60.3%), E. sakazacki 29 (21.3%) and E. aerogenes 24 (17.6%), and a strain of the rare E. amnigenus (p<0.01). The antimicrobial resistance of Enterobacter cloacae had increased recently. The change of the antimicrobial resistance should be investigated in order to direct rational drug usage in the clinic and prevent bacterial strain of drug resistance from being transmitted.