Methods: MRAB strains were isolated from patients in two intensive care units (ICUs).
Antimicrobial susceptibility testing was performed by E-test. Polymerase chain reaction
(PCR) was used to detect the presence of the most common A. baumannii carbapenemases.
Epidemiological typing was performed by rep-PCR (DiversiLab) and pulsed-field gel electrophoresis.
VHP was used to decontaminate the affected ICUs.