Carbapenem-resistant and OXA-23-producing Acinetobacter baumannii isolates in the United Arab Emirates.
Five carbapenem-resistant Acinetobacter baumannii isolates, collected from the United Arab Emirates in 2006, were investigated to identify the mechanism(s) responsible for carbapenem resistance. Genotyping was performed by pulsed-field gel electrophoresis, and the location of the bla(OXA-23) gene was determined by using the endonuclease I CeuI technique and mating-out assays. The four isolates in which the bla(OXA-23) gene was located on the chromosome within a Tn2006 composite transposon were clonally related. The single non-clonally related isolate harboured the bla(OXA-23) gene on a 70-kb transferable plasmid. This study reports on the dissemination of OXA-23-producing A. baumannii isolates in the Middle East.
Service de Bactériologie-Virologie, INSERM U914, Emerging Resistance to Antibiotics, Hôpital de Bicêtre, Assistance Publique/Hôpitaux de Paris, Faculté de Médecine et Université Paris Sud, Bicêtre, France.
P
P
Mugnier
L
L
Poirel
M
M
Pitout
P
P
Nordmann
D000151:Acinetobacter Infections / Q000382:microbiology*; D040981:Acinetobacter baumannii / Q000187:drug effects* / Q000201:enzymology* / Q000302:isolation & purification; D000328:Adult; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D015780:Carbapenems / Q000494:pharmacology*; D002876:Chromosomes, Bacterial; D003227:Conjugation, Genetic; D016172:DNA Fingerprinting; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000235:genetics; D016521:Electrophoresis, Gel, Pulsed-Field; D005838:Genotype; D006801:Humans; D008875:Middle Aged; D010957:Plasmids; D014479:United Arab Emirates; D018440:beta-Lactam Resistance; D001618:beta-Lactamases / Q000096:biosynthesis*
D000900:Anti-Bacterial Agents; D015780:Carbapenems; D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D001618:beta-Lactamases