Genetic Diversity of Listeria monocytogenes Isolates from Invasive Listeriosis in China.
Foodborne Pathog Dis
; 17(3): 215-227, 2020 03.
Article
em En
| MEDLINE
| ID: mdl-32150465
ABSTRACT
Listeria monocytogenes is a deadly foodborne pathogen, and infections can result in meningoencephalitis and sepsis with mortality rates of up to 30%. In this study, we performed comparative whole-genome analysis of 30 clinical isolates sequenced together with 32 previously sequenced clinical and food isolates from China. The data indicate that L. monocytogenes isolates belonging to the clonal complexes (CC) -1, -8, -9, -87, -121, and -155 are present in human clinical cases. The majority of isolates are from CC-87, 9, and 8 and overlap with those CCs previously reported on the basis of multilocus sequence typing for isolates from Chinese food products. Detailed genome analysis of isolates, representative of CCs in clinical and food products, revealed strong similarities both in their core- and accessory genomes indicating that they are highly related. When compared to genome sequences of isolates of a given CC worldwide, clinical isolates of China were distinct and clustered in unified clades. Our data indicate that epidemic clones of L. monocytogenes (CC-87, 9, and 8) with unusually high occurrence of plasmids are unique to China and suggest that common populations of L. monocytogenes clones are present in both clinical and food products in China.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Variação Genética
/
Listeriose
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Listeria monocytogenes
Limite:
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
Foodborne Pathog Dis
Assunto da revista:
CIENCIAS DA NUTRICAO
/
MICROBIOLOGIA
/
PARASITOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
China