Eleven CAC producers (1 SME-producing Serratia marcescens, 2 IMI/NMC-A-producing Enterobacter cloacae, 2 KPC-producing Enterobacteriaceae, and 6 GES-producing Klebsiella pneumoniae); 7 MBL producers (3 VIM-producing Pseudomonas aeruginosa, 2 IMP-producing P. aeruginosa, 1 IMP-producing Acinetobacter baumannii, and 1 SIM-producing A. baumannii); and 5 non-carbapenemase-producing Enterobacteriaceae were studied