Dissemination of Multidrug-Resistant Proteus mirabilis Clones Carrying a Novel Integron-Borne bla IMP-1 in a Tertiary Hospital.

This study aimed to characterize multidrug-resistant Proteus mirabilis clones carrying a novel class 1 integron-borne bla(IMP)-1. In1359 was inserted into a large conjugative plasmid that also carried bla(CTX-M-2). The production of carbapenemases in Enterobacteriaceae that are intrinsically resistant to polymyxins and tigecycline is very worrisome, representing a serious challenge to clinicians and infection control teams.