A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Molecular typing of vancomycin-resistant Enterococcus faecium with an automated repetitive sequence-based PCR microbial typing system compared with pulsed-field gel electrophoresis and multilocus sequence typing.
Tekijät: Kardén-Lilja M, Vuopio J, Koskela M, Tissari P, Salmenlinna S
Julkaisuvuosi: 2013
Journal: Scandinavian Journal of Infectious Diseases
Tietokannassa oleva lehden nimi: Scandinavian journal of infectious diseases
Lehden akronyymi: Scand J Infect Dis
Vuosikerta: 45
Numero: 5
Aloitussivu: 350
Lopetussivu: 356
Sivujen määrä: 7
ISSN: 1651-1980
DOI: https://doi.org/10.3109/00365548.2012.737475
BACKGROUND\nPulsed-field gel electrophoresis (PFGE) is the main typing method used for the molecular typing of vancomycin-resistant Enterococcus faecium (VREfm). However, more rapid and unambiguous typing methods are needed. DiversiLab, a repetitive sequence-based PCR (rep-PCR), offers an alternative method for strain typing.\nMETHODS\nThirty-nine VREfm isolates with known epidemiological relationships were characterized by semi-automated rep-PCR (DiversiLab), PFGE, and multilocus sequence typing (MLST).\nRESULTS\nThe DiversiLab results were analysed in 2 ways: first relying solely on the DiversiLab software, and second by DiversiLab analysis combined with manual interpretation. The analysis with interpretation yielded more DiversiLab profiles, correlated better with PFGE and MLST, and grouped the isolates better according to their relatedness in time and space. However, most of the DiversiLab groups also included isolates with different PFGE and MLST types.\nCONCLUSIONS\nDiversiLab provides rapid information when investigating a potential hospital outbreak. However, the interpretation of E. faecium DiversiLab results cannot be fully automated and is not always straightforward. Other typing methods may be necessary to confirm the analysis.