Emergence of vanA Enterococcus faecium in Denmark, 2005-15.
J Antimicrob Chemother
; 72(8): 2184-2190, 2017 08 01.
Article
em En
| MEDLINE
| ID: mdl-28541565
ABSTRACT
Objectives:
To describe the changing epidemiology of vancomycin-resistant Enterococcus faecium and Enterococcus faecalis in clinical samples in Denmark 2005-15 according to species and van type, and, furthermore, to investigate the genetic relatedness of the clinical E. faecium isolates from 2015.Methods:
During 2005-14, all clinical VRE isolates were tested for the presence of vanA/B/C genes by PCR. In 2015, all clinical VRE isolates were whole-genome sequenced. From the WGS data, the presence of van genes and MLST STs were extracted in silico . Core-genome MLST (cgMLST) analysis was performed for the vancomycin-resistant E. faecium isolates.Results:
During 2005-15, 1043 vanA E. faecium , 25 vanB E. faecium , 4 vanA E. faecalis and 28 vanB E. faecalis were detected. The number of VRE was <50 isolates/year until 2012 to >â¯200 isolates/year in 2013-15. In 2015, 368 vanA E. faecium and 1 vanB E. faecium were detected along with 1 vanA E. faecalis and 1 vanB E. faecalis . cgMLST subdivided the 368 vanA E. faecium isolates into 33 cluster types (CTs), whereas the vanB E. faecium isolate belonged to a different CT. ST203-CT859 was most prevalent (51%), followed by ST80-CT14 (22%), ST117-CT24 (6%), ST80-CT866 (4%) and ST80-CT860 (2%). Comparison with the cgMLST.org database, previous studies and personal communications with neighbouring countries revealed that the novel cluster ST203-CT859 emerged in December 2014 and spread to the south of Sweden and the Faroe Islands during 2015.Conclusions:
VRE increased in Denmark during 2005-15 due to the emergence of several vanA E. faecium clones.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Bactérias
/
Infecções por Bactérias Gram-Positivas
/
Enterococcus faecium
/
Carbono-Oxigênio Ligases
/
Enterococos Resistentes à Vancomicina
Limite:
Humans
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Antimicrob Chemother
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Dinamarca