Diversidade dos genes associados à virulência em cepas de Escherichia coli O128 isoladas em São Paulo, Brasil
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Palavras-chave

Escherchia coli
E.coli enteropatogênica
EPEC
Sorotipos O128

Como Citar

1.
Dias Ângela MG, Irino K, Kano E, Kato MAMF, Gomes TAT, Trabulsi LR. Diversidade dos genes associados à virulência em cepas de Escherichia coli O128 isoladas em São Paulo, Brasil. Rev Inst Adolfo Lutz [Internet]. 1º de abril de 2008 [citado 10º de dezembro de 2024];67(2):156-62. Disponível em: https://periodicos.saude.sp.gov.br/RIAL/article/view/32784

Resumo

Foram estudadas 103 cepas de Escherichia coli do sorogrupo O128, quanto às características fenotípicas e genotípicas associadas à virulência. Cinqüenta e nove cepas representantes de todos os sorotipos foram submetidas a ribotipagem. Os sorotipos mais freqüentes foram O128:H35 (41,7%), O128:H2 (14,6%), O128:H- (8,7%) e O128:H8 (6,8%). Diferentes grupos enteropatogênicos foram identificados. Somente as cepas do sorotipo O128:H2 foram positivas para as sondas eae and bfpA e apresentaram o padrão de adesão AL-like. Cepas do sorotipo O128:H8 e algumas imóveis reagiram apenas com a sonda eae e foram classificadas como EPEC atípicas. As cepas O128:H35 corresponderam à categoria enteroagregativa e os sorotipos O128:H7, O128:H21, O128:H27 e as cepas imóveis foram classificadas como enterotoxigênicas. Todas as cepas que apresentaram marcadores de virulência pertenciam ao grupo clonal A, enquanto que no grupo clonal B estavam incluídas as cepas desprovidas dos fatores de virulência pesquisados.
https://doi.org/10.53393/rial.2008.67.32784
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Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.

Copyright (c) 2008 Ângela Maria Girardi Dias, Kinue Irino, Elena Kano, Maria Aidê Mitiko Fukushima Kato, Tânia Aparecida Tardelo Gomes, Luiz Rachid Trabulsi

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