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Molecular and phenotypic characterization of clinical isolates belonging to a KPC-2-producing strain of ST15 Klebsiella pneumoniae from a Vietnamese pediatric hospital
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi, infektion och inflammation. Linköpings universitet, Medicinska fakulteten.
Vietnam Natl Childrens Hosp, Vietnam.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
Vietnam Natl Childrens Hosp, Vietnam.
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2019 (engelsk)Inngår i: Antimicrobial Resistance and Infection Control, ISSN 2047-2994, E-ISSN 2047-2994, Vol. 8, nr 1, artikkel-id 156Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background Carbapenem-resistant Klebsiella pneumoniae are becoming increasingly common in hospital settings worldwide and are a source of increased morbidity, mortality and health care costs. The global epidemiology of carbapenem-resistant K. pneumoniae is characterized by different strains distributed geographically, with the strain ST258 being predominant in Europe and USA, and ST11 being most common in East Asia. ST15 is a less frequently occurring strain but has nevertheless been reported worldwide as a source of hospital outbreaks of carbapenem-resistant K. pneumoniae. Methods In this study, whole-genome sequencing and antimicrobial susceptibility testing was used to characterize 57 clinical isolates of carbapenem-resistant K. pneumoniae belonging to a strain of ST15, which were collected at a Vietnamese pediatric hospital from February throughout September 2015. Results Aside from the carbapenem resistance gene bla(KPC-2), which was carried by all isolates, prevalence of resistance genes to other antibiotics including aminoglycosides, macrolides, quinolones, fosfomycin and trimethoprim, was also high. All isolates were multidrug-resistant. Susceptibility was highest to ceftazidime/avibactam (96%), gentamicin (91%) and tigecycline (82%). Notably, the colistin resistance rate was very high (42%). Single-nucleotide polymorphism analysis indicated that most isolates belonged to a single clone. Conclusions The diverse variety of antibiotic resistance genes and the high antibiotic resistance rates to last-resort antibiotics such as carbapenems and colistin, is indicative of a highly adaptable strain. This emphasizes the importance of implementation of infection controls measures, continued monitoring of antibiotic resistance and prudent use of antibiotics to prevent further selection of resistant strains and the emergence of pan-resistant clones.

sted, utgiver, år, opplag, sider
BMC , 2019. Vol. 8, nr 1, artikkel-id 156
Emneord [en]
Antibiotic resistance; Carbapenems; Klebsiella pneumoniae; Vietnam; Whole-genome sequencing
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Identifikatorer
URN: urn:nbn:se:liu:diva-161384DOI: 10.1186/s13756-019-0613-4ISI: 000490862100001PubMedID: 31636899OAI: oai:DiVA.org:liu-161384DiVA, id: diva2:1367485
Merknad

Funding Agencies|Training and Research Academic Collaboration (TRAC) - Sweden - Vietnam - Swedish Foundation for International Cooperation in Research and Higher Education (STINT) [SG 2015-5972]; Swedish Research CouncilSwedish Research Council [330-2014-6356]; Region Ostergotland [LIO-793191]; Linkoping University; Karolinska InstituteKarolinska Institutet

Tilgjengelig fra: 2019-11-04 Laget: 2019-11-04 Sist oppdatert: 2020-04-30

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