Increase of blaOXA-23-like in Acinetobacter baumannii at a tertiary care center in Lebanon between 2007 and 2013

The presence of numerous clusters accompanied by a predominant increase in the prevalence of blaOXA-23-like between 2007 and 2013 suggests a horizontal transmission of the gene within various strains of the species, contributing to the persistent increase in carbapenem resistance over the years. Therefore, infection control measures are required with compliance among all healthcare workers.