Emergence of Acinetobacter baumannii with resistance or reduced susceptibility to carbapenems has been reported worldwide (4). Acinetobacter may develop resistance to carbapenems through various mechanisms, including decreased permeability, efflux pump overexpression, and production of carbapenemases (3, 4, 9). Four of the eight carbapenemase-hydrolyzing oxacillinase (OXA) clusters have been id...

An IMP-4-producing Acinetobacter pittii strain coproducing oxacillinases was isolated from a leg wound of a 67-year-old female patient. Identification to the species level by rpoB and gyrB sequencing and multiplex-PCR-based analysis revealed that the isolate was A. pittii. Whole-genome sequencing of this A. pittii isolate determined the presence of blaOXA-96, blaCARB-2, and a novel blaOXA-421 g...

15 Production of OXA-23 carbapenemase is the most common reason for the increasing 16 carbapenem resistance in Acinetobacter spp. This study was conducted to reveal the genetic 17 basis of the blaOXA-23 dissemination in Acinetobacter spp. in China. A total of sixty-three 18 carbapenem-resistant OXA-23-producing Acinetobacter spp. isolates, representing different 19 backgrounds, were selected fr...

In vivo, beta(2) integrins and particularly alpha(L)beta(2) (LFA-1) robustly support firm adhesion of leukocytes, but can also cooperate with other molecules in supporting rolling adhesion. Strikingly, a small molecule alpha/beta I-like allosteric antagonist, XVA143, inhibits LFA-1-dependent firm adhesion, while at the same time it enhances adhesion in shear flow and rolling both in vitro and i...

Acinetobacter pittii 44551 was recovered from a patient with gout combined with tuberculosis and was found to harbor the carbapenemase genes blaNDM-1 and blaOXA-58 on two different plasmids pNDM-44551 and pOXA58-44551, respectively. pNDM-44551 displayed high self-transferability across multiple bacterial species, while pOXA58-44551 was likely co-transferable with pNDM-44551 into A. baumannii re...

Sir, The emergence and dissemination of Klebsiella pneumoniae isolates harbouring carbapenemases is a serious problem. Since the initial report of the OXA-48 enzyme in a K. pneumoniae isolate from Turkey in 2001, OXA-48 producers have been reported in many countries of the world. – 4 Current reports indicate that OXA-48 producers are widespread, mostly from Mediterranean countries as well as ot...

From a total of 320 bacterial samples from wound swab and urine 169 (53%) gram-negative bacteria were isolated, of which 42 (25%) extended-spectrum beta-lactamase (ESBL) producers were detected by double-disk synergy test. ESBL producers were significantly more resistant against amoxiclav, Co-trimoxazole, ciprofloxacin, amikacin and gentamicin than non-ESBL producers. Among the 42 ESBL producer...

INTRODUCTION Acinetobacter baumannii is a nosocomial pathogen that is showing increasing rates of carbapenem resistance. Multi-Drug Resistant (MDR) International Clones (ICs), associated with certain oxacillinases, are being reported globally. This organism also harbors numerous virulence determinants. In this study, we aim at characterizing A. baumannii isolated from a Spanish hospital in term...

Oxacillinase (OXA)-48-like carbapenemases remain relatively uncommon in the United States. We performed phenotypic and genotypic characterization of 30 Enterobacteriaceae producing OXA-48-like carbapenemases that were recovered from patients during 2010-2014. Isolates were collected from 12 states and not associated with outbreaks, although we could not exclude limited local transmission. The a...

OBJECTIVES To obtain the complete genome sequence of an Acinetobacter johnsonii isolate, which encodes the NDM-1 and OXA-58 carbapenemases. METHODS Genome sequencing was performed using the 454 and HiSeq 2000 platforms. Reads were assembled into scaffolds and gaps between scaffolds were filled by PCR and Sanger sequencing. Phylogenetic analyses of A. johnsonii isolates and their intrinsic bla...