Molecular characteristics of extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae causing intra-abdominal infections from 9 tertiary hospitals in China
The most common ESBL type of E.coli causing IAIs in China was CTX-M-15. SHV-2a was the most common ESBL type of K. pneumoniae causing IAIs in China. The carbapenems remain the most active antimicrobial agents in vitro overall. Continued monitoring of the antibiotics susceptibility is crucial.