Identification of Gene in ST307 and ST661 Clones in Italy: Old Acquaintances for New Combinations.

In the past years, the carbapenemase (KPC)-producing sequence type 258 (ST258) became an important worldwide spread nosocomial pathogen. Recent evidence shows that the global epidemiology is changing, with the rise of new lineages. In this study we report the microbiological and genomic features of two VIM-1-producing isolates belonging to the emerging ST307.