Molecular Typing and Epidemiology of Human Listeriosis Cases, Denmark, 2002-2012.
Emerg Infect Dis
; 22(4): 625-33, 2016 Apr.
Article
em En
| MEDLINE
| ID: mdl-26982714
ABSTRACT
Denmark has a high incidence of invasive listeriosis (0.9 cases/100,000 population in 2012). We analyzed patient data, clinical outcome, and trends in pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) of Listeria monocytogenes strains isolated in Denmark during 2002-2012. We performed 2-enzyme PFGE and serotyping on 559 isolates and MLST on 92 isolates and identified some correlation between molecular type and clinical outcome and patient characteristics. We found 178 different PFGE types, but isolates from 122 cases belonged to just 2 closely related PFGE types, clonal complex 8 and sequence type 8. These 2 types were the main cause of a peak in incidence of invasive listeriosis during 2005-2009, possibly representing an outbreak or the presence of a highly prevalent clone. However, current typing methods could not fully confirm these possibilities, highlighting the need for more refined discriminatory typing methods to identify outbreaks within frequently occurring L. monocytogenes PFGE types.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
DNA Bacteriano
/
Surtos de Doenças
/
Microbiologia de Alimentos
/
Listeriose
/
Listeria monocytogenes
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
/
Screening_studies
Limite:
Humans
País/Região como assunto:
Europa
Idioma:
En
Revista:
Emerg Infect Dis
Assunto da revista:
DOENCAS TRANSMISSIVEIS
Ano de publicação:
2016
Tipo de documento:
Article