High prevalence of bla(NDM-1) carbapenemase-encoding gene and 16S rRNA armA methyltransferase gene among Acinetobacter baumannii clinical Isolates in Egypt

The main objective of this study was to decipher the molecular mechanism of resistance to carbapenems and aminoglycosides in a large series of 150 Acinetobacter baumannii clinical isolates collected from July 2012 to September 2013 in Egypt. We report for the first time the emergence of bla(NDM-1) and the cooccurrence of 16S rRNA methylase armA with bla(NDM-1) and bla(OXA-23) in Egyptian hospitals. Multilocus sequence typing identified 27 distinct sequence types, 11 of which were novel.