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

Ângela Maria Girardi Dias; Kinue Irino; Elena Kano; Maria Aidê Mitiko Fukushima Kato; Tânia Aparecida Tardelo Gomes; Luiz Rachid Trabulsi

doi:10.53393/rial.2008.67.32784

Vol. 67 No. 2 (2008), ORIGINAL ARTICLE

Vol. 67 No. 2 (2008)

Virulence-associated genes diversity in Escherichia coli O128 strains isolated in São Paulo, Brazil

ORIGINAL ARTICLE

https://doi.org/10.53393/rial.2008.67.32784

Published 2008-04-01

Ângela Maria Girardi Dias⁺⁻
Kinue Irino⁺⁻
Elena Kano⁺⁻
Maria Aidê Mitiko Fukushima Kato⁺⁻
Tânia Aparecida Tardelo Gomes⁺⁻
Luiz Rachid Trabulsi⁺⁻

Ângela Maria Girardi Dias

Instituto Adolfo Lutz, Laboratório de Bacteriologia, Sorocaba, SP

Kinue Irino

Instituto Adolfo Lutz, divisão de Biologia Médica, São Paulo, SP

Elena Kano

Instituto Adolfo Lutz, divisão de Biologia Médica, São Paulo, SP

Maria Aidê Mitiko Fukushima Kato

Instituto Adolfo Lutz, divisão de Biologia Médica, São Paulo, SP

Tânia Aparecida Tardelo Gomes

Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, SP

Luiz Rachid Trabulsi

Instituto Butantan, Laboratório Especial de Microbiologia, São Paulo, SP

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Keywords

Escherichia coli
Enteropathogenic E.coli
EPEC
Serotypes O128

How to Cite

1.

Dias Ângela MG, Irino K, Kano E, Kato MAMF, Gomes TAT, Trabulsi LR. Virulence-associated genes diversity in Escherichia coli O128 strains isolated in São Paulo, Brazil. Rev Inst Adolfo Lutz [Internet]. 2008 Apr. 1 [cited 2024 Jul. 22];67(2):156-62. Available from: https://periodicos.saude.sp.gov.br/RIAL/article/view/32784

Abstract

Hundred-three Escherichia coli strains of serogroup O128 were serotyped and examined for virulenceassociated genes. The 59 representative strains of all serotypes were submitted to ribotyping. The serotypes O128:H35 (41.7%), O128:H2 (14.6%), O128:H- (8.7%) and O128:H8 (6.8%) were the most frequently found. Serotype O128ab:H2 strains only carried the eae and bfpA sequences. These strains exhibited the LA-like adhesion pattern. Serotype O128ab:H8 strains and some non-motile strains reacted only with the eae probe, and they were classified as atypical EPEC. The O128:H35 strains corresponded to the enteroaggregative category. Enterotoxigenic strains were found among O128ac:H7, O128ac:H21, O128ac:H27 and O128ac:H- strains. Clonal group A comprised the majority of virulence markers - harbouring strains, while clonal group B included mainly those strains devoid of any virulence marker.

https://doi.org/10.53393/rial.2008.67.32784

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