Molecular Analysis of VanA Outbreak of Enterococcus faecium in Two Warsaw Hospitals : The Importance of Mobile Genetic Elements
Joint Authors
Żabicka, Dorota
Połowniak-Pracka, Hanna
Sadowy, Ewa
Hryniewicz, Waleria
Wardal, Ewa
Giemza, Małgorzata
Markowska, Katarzyna
Wróblewska, Marta
Woźniak, Agnieszka
Mik, Ewa
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-09
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Vancomycin-resistant Enterococcus faecium represents a growing threat in hospital-acquired infections.
Two outbreaks of this pathogen from neighboring Warsaw hospitals have been analyzed in this study.
Pulsed-field gel electrophoresis (PFGE) of SmaI-digested DNA, multilocus VNTR analysis (MLVA), and multilocus sequence typing (MLST) revealed a clonal variability of isolates which belonged to three main lineages (17, 18, and 78) of nosocomial E.
faecium.
All isolates were multidrug resistant and carried several resistance, virulence, and plasmid-specific genes.
Almost all isolates shared the same variant of Tn1546 transposon, characterized by the presence of insertion sequence ISEf1 and a point mutation in the vanA gene.
In the majority of cases, this transposon was located on 50 kb or 100 kb pRUM-related plasmids, which lacked, however, the axe-txe toxin-antitoxin genes.
100 kb plasmid was easily transferred by conjugation and was found in various clonal backgrounds in both institutions, while 50 kb plasmid was not transferable and occurred solely in MT159/ST78 strains that disseminated clonally in one institution.
Although molecular data indicated the spread of VRE between two institutions or a potential common source of this alert pathogen, epidemiological investigations did not reveal the possible route by which outbreak strains disseminated.
American Psychological Association (APA)
Wardal, Ewa& Markowska, Katarzyna& Żabicka, Dorota& Wróblewska, Marta& Giemza, Małgorzata& Mik, Ewa…[et al.]. 2014. Molecular Analysis of VanA Outbreak of Enterococcus faecium in Two Warsaw Hospitals : The Importance of Mobile Genetic Elements. BioMed Research International،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-482032
Modern Language Association (MLA)
Wardal, Ewa…[et al.]. Molecular Analysis of VanA Outbreak of Enterococcus faecium in Two Warsaw Hospitals : The Importance of Mobile Genetic Elements. BioMed Research International No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-482032
American Medical Association (AMA)
Wardal, Ewa& Markowska, Katarzyna& Żabicka, Dorota& Wróblewska, Marta& Giemza, Małgorzata& Mik, Ewa…[et al.]. Molecular Analysis of VanA Outbreak of Enterococcus faecium in Two Warsaw Hospitals : The Importance of Mobile Genetic Elements. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-482032
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482032