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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
Linköping University, Department of Clinical and Experimental Medicine, Division of Microbiology, Infection and Inflammation. Linköping University, Faculty of Medicine and Health Sciences.
Vietnam Natl Childrens Hosp, Vietnam.
Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences.
Vietnam Natl Childrens Hosp, Vietnam.
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2019 (English)In: Antimicrobial Resistance and Infection Control, ISSN 2047-2994, E-ISSN 2047-2994, Vol. 8, no 1, article id 156Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
BMC , 2019. Vol. 8, no 1, article id 156
Keywords [en]
Antibiotic resistance; Carbapenems; Klebsiella pneumoniae; Vietnam; Whole-genome sequencing
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Nursing
Identifiers
URN: urn:nbn:se:liu:diva-161384DOI: 10.1186/s13756-019-0613-4ISI: 000490862100001PubMedID: 31636899OAI: oai:DiVA.org:liu-161384DiVA, id: diva2:1367485
Note

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

Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2020-04-30

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Berglund, BjörnTärnberg, MariaNilsson, MaudSvartström, OlovWelander, JennyNilsson, Lennart EHanberger, Håkan
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Division of Microbiology, Infection and InflammationFaculty of Medicine and Health SciencesDivision of Neuro and Inflammation ScienceDepartment of Clinical and Experimental MedicineDepartment of Clinical MicrobiologyDepartment of Infectious Diseases
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