Dataset Information

NDM-5 and OXA-181 Beta-Lactamases, a Significant Threat Continues To Spread in the Americas.

ABSTRACT: Among Gram-negative bacteria, carbapenem-resistant infections pose a serious and life-threatening challenge. Here, the CRACKLE network reports a sentinel detection and characterization of a carbapenem-resistant Klebsiella pneumoniae ST147 isolate harboring blaNDM-5 and blaOXA-181 from a young man who underwent abdominal surgery in India. blaNDM-5 was located on an IncFII plasmid of ?90 kb, whereas blaOXA-181 was chromosomally encoded. Resistome and genome analysis demonstrated multiple copies of the transposable element IS26 and a "hot-spot region" in the IncFII plasmid.

SUBMITTER: Rojas LJ

PROVIDER: S-EPMC5487671 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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NDM-5 and OXA-181 Beta-Lactamases, a Significant Threat Continues To Spread in the Americas.

Rojas Laura J LJ Hujer Andrea M AM Rudin Susan D SD Wright Meredith S MS Domitrovic T Nicholas TN Marshall Steven H SH Hujer Kristine M KM Richter Sandra S SS Cober Eric E Perez Federico F Adams Mark D MD van Duin David D Bonomo Robert A RA

Antimicrobial agents and chemotherapy 20170627 7

Among Gram-negative bacteria, carbapenem-resistant infections pose a serious and life-threatening challenge. Here, the CRACKLE network reports a sentinel detection and characterization of a carbapenem-resistant Klebsiella pneumoniae ST147 isolate harboring blaNDM-5 and blaOXA-181 from a young man who underwent abdominal surgery in India. blaNDM-5 was located on an IncFII plasmid of ≈90 kb, whereas blaOXA-181 was chrom ...[more]

PMID: 28461314

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Project description:Aim of this study was to genetically characterize two carbapenemase-producing Escherichia coli strains obtained from a pediatric patient affected by diarrhea, expressing OXA-181 and/or NDM-5 type enzymes. The above microorganisms were collected in the same Desenzano hospital (Northern Italy) where the bla NDM- 5 gene was detected for the first time in Italy 3 years ago. One strain (5P), belonged to sequence type ST405/ST477 (according to Pasture/Oxford schemes) and serotype O102:H6. It was characterized by a 130562 bp multi-replicon plasmid IncFII/IncFIA/IncFIB (pVSI_NDM-5) enclosing two main antibiotic resistance islands: (i) ARI-I, 10030 bp in size, carried genes coding for β-lactam- (bla OXA- 1, bla CTX-M- 15), fluoroquinolone/aminoglycoside- (aac(6')-lb-cr) and phenicol- resistance (catB3), (ii) ARI-II, 15326 bp in size, carried genes coding for sulfonamide- (sul1), β-lactam- (bla NDM- 5, bla TEM- 1 B), phenicol- (catB3), trimethoprim- (dfrA17), antiseptic- (qacEΔ1), and aminoglycoside- (aadA5, rmtB) resistance. The other isolate (5M), belonged to sequence type ST2659/ST759 and serotype O50/02:H18, and carried four plasmids: a 153866 bp multi-replicon IncFII/IncFIA/IncFIB (pISV_IncFII_NDM-5), an 89866 bp IncI1 plasmid, a 51480 bp IncX3 plasmid (pISV_IncX3_OXA181), and a 41143 bp IncI plasmid (pISV_IncI_CMY-42). pISV_IncFII_NDM-5 carried two main antibiotic resistance islands: (i) ARI-III, 12220 bp in size, carried genes coding for β-lactam- (bla OXA- 1), fluoroquinolone/aminoglycoside- (aac(6')-lb-cr), tetracycline- (tet(B)) and phenicol- resistance (catB3, catA1), and ii) ARI-IV, 26527 bp in size, carried determinants coding for macrolide- (erm(B), mph(A)), sulfonamide- (sul1), beta-lactam- (bla NDM- 5, bla TEM- 1 B), trimethoprim- (dfrA14, dfrA12), antiseptic- (qacEΔ1), and aminoglycoside- resistance (aadA5). pISV_IncI_CMY-42 harbored the bla CMY- 42 gene coding for beta-lactam resistance, pISV_IncX3_OXA181 harbored genes encoding fluoroquinolone- (qnrS1) and beta-lactams- resistance (bla OXA- 181). In conclusion, the detection of two different NDM-5 E. coli strains from a pediatric patient with a history of travel to the Far East countries strongly highlight an increasing trend and risk of importation from such areas.

Dataset Information

NDM-5 and OXA-181 Beta-Lactamases, a Significant Threat Continues To Spread in the Americas.

Publications

NDM-5 and OXA-181 Beta-Lactamases, a Significant Threat Continues To Spread in the Americas.

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