Conversion of OXA-66 into OXA-82 in clinical Acinetobacter baumannii isolates and association with altered carbapenem susceptibility

Received 8 August 2012; returned 20 August 2012; revised 27 August 2012; accepted 29 August 2012Objectives: Three clinical Acinetobacter baumannii isolates (A–C) were isolated from three separate patientsduring an outbreak in a hospital in Krakow, Poland. Isolate A was recovered first and was susceptible tocarbapenems, whereas isolates B and C were resistant. The aim of this study was to investigate the differencesin carbapenem susceptibility in these outbreak-related isolates.Methods: Clonal relatedness was determined using rep-PCR-based DiversiLab. The bla