Characterization of Listeria monocytogenes strains isolated during 2011-2013 from human infections in Switzerland.
Foodborne Pathog Dis
; 11(10): 753-8, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-25007293
ABSTRACT
Listeria monocytogenes, an emerging foodborne pathogen, can cause in the population at risk severe infections that are associated with high case fatality rates. A total of 93 L. monocytogenes strains isolated from different patients in Switzerland from July 2011 to September 2013 were further characterized. Septicemia was reported for 74.2% of the patients, meningitis for 10.8%, and abortion for 3.2%. The majority of the strains belonged to serotype 1/2a (n=58) followed by serotype 4b (n=28), 1/2b (n=5), and 1/2c (n=2). The strains represented 35 multilocus sequence typing sequence types, 8 of which were designated for the first time. Sequence analysis of the inlA gene in the 35 sequence types showed that most of the strains encoded full-length proteins. Screening for Listeriolysin S showed the presence of this virulence factor in 29 of the 33 genetic lineage I strains. By using ApaI and AscI for pulsed-field gel electrophoresis, most strains showed distinguishable patterns.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças Transmitidas por Alimentos
/
Listeriose
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Listeria monocytogenes
Limite:
Adolescent
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Adult
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Child
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Female
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Humans
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Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Foodborne Pathog Dis
Assunto da revista:
CIENCIAS DA NUTRICAO
/
MICROBIOLOGIA
/
PARASITOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Suíça