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Abstract

Two distinct diarrheagenic Escherichia coli pathotypes, enteroaggregative E. coli (EAEC) and Shiga toxin-producing E. coli, were observed in association with O113 strains isolated from human and nonhuman sources in Brazil, respectively. The O113 strains from human diarrhea belonged to a diversity...

Author(s)
Santos, L. F. dos; Gonçalves, E. M.; Vaz, T. M. I.; Irino, K.; Guth, B. E. C.
Publisher
American Society for Microbiology (ASM), Washington, USA
Citation
Journal of Clinical Microbiology, 2007, 45, 6, pp 2028-2030
Abstract

The occurrence of Shiga toxin (Stx) gene sequences was examined in 344 fecal samples from diarrheic (n=139) and non-diarrheic (n=205) calves from 12 beef farms in São Paulo State, Brazil to study the prevalence of Shiga toxin-producing Escherichia coli (STEC) strains. Forty-four (12.7%) animals...

Author(s)
Leomil, L.; Aidar-Ugrinovich, L.; Guth, B. E. C.; Irino, K.; Vettorato, M. P.; Onuma, D. L.; Castro, A. F. P. de
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Veterinary Microbiology, 2003, 97, 1/2, pp 103-109
Abstract

Escherichia coli strains of serotype O113:H21 are commonly described as belonging to a Shiga toxin (Stx)-producing E. coli (STEC) pathotype worldwide. Albeit this STEC serotype is frequently identified among cattle and other domestic animals, to the best of our knowledge no human infections...

Author(s)
Santos, L. F. dos; Irino, K.; Vaz, T. M. I.; Guth, B. E. C.
Publisher
Society for General Microbiology, Reading, UK
Citation
Journal of Medical Microbiology, 2010, 59, 6, pp 634-640
Abstract

Aims: To investigate the prevalence and characteristics of Shiga toxin-producing Escherichia coli (STEC) in cattle from Paraná State, southern Brazil. Methods and Results: One hundred and seven faeces cattle samples were cultured on Sorbitol-MacConkey agar. Escherichia coli colonies were tested for ...

Author(s)
Farah, S. M. S. S.; Souza, E. M. de; Pedrosa, F. O.; Irino, K.; Silva, L. R. da; Rigo, L. U.; Steffens, M. B. R.; Pigatto, C. P.; Fadel-Picheth, C. M. T.
Publisher
Blackwell Publishing, Oxford, UK
Citation
Letters in Applied Microbiology, 2007, 44, 6, pp 607-612
Abstract

The distribution of virulence markers related to cytolethal distending toxin-V (CDT-V), subtilase cytotoxin (SubAB), the enterohemorrhagic Escherichia coli factor for adherence (Efa1), the adhesin similar to IrgA (Iha), the long polar fimbriae (LpfO113), the autoagglutinating adhesin (Saa), and the ...

Author(s)
Cergole-Novella, M. C.; Nishimura, L. S.; Santos, L. F. dos; Irino, K.; Vaz, T. M. I.; Bergamini, A. M. M.; Guth, B. E. C.
Publisher
Blackwell Publishing, Oxford, UK
Citation
FEMS Microbiology Letters, 2007, 274, 2, pp 329-334
Abstract

A total of 107 Shiga toxin-producing Escherichia coli strains (STEC) isolated from different origins in São Paulo, Brazil, and belonging to different serotypes were characterized regarding stx subtypes and susceptibility to antimicrobial agents. Most of the human STEC strains harbored stx1 (85.7%), ...

Author(s)
Cergole-Novella, M. C.; Nishimura, L. S.; Irino, K.; Vaz, T. M. I.; Castro, A. F. P. de; Leomil, L.; Guth, B. E. C.
Publisher
Blackwell Publishing, Oxford, UK
Citation
FEMS Microbiology Letters, 2006, 259, 2, pp 234-239
Abstract

The prevalence, serotypes and virulence profiles of Shiga toxin-producing Escherichia coli (STEC) were investigated in 205 healthy beef and dairy cattle, and 106 goats reared in the southeastern region of Minas Gerais State, Brazil. The prevalence of STEC was 57.5% (61/106) in goats, 39.2%,...

Author(s)
Oliveira, M. G.; Brito, J. R. F.; Gomes, T. A. T.; Guth, B. E. C.; Vieira, M. A. M.; Naves, Z. V. F.; Vaz, T. M. I.; Irino, K.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
International Journal of Food Microbiology, 2008, 127, 1/2, pp 139-146
Abstract

Thirty-eight Shiga toxin-producing Escherichia coli (STEC) O157:H7/H- strains isolated from human infections, cattle and foods in Brazil and in some other Latin American countries were compared with regard to several phenotypic and genotypic characteristics. The genetic relatedness of the strains...

Author(s)
Bastos, F. C.; Vaz, T. M. I.; Irino, K.; Guth, B. E. C.
Publisher
Blackwell Publishing, Oxford, UK
Citation
FEMS Microbiology Letters, 2006, 265, 1, pp 89-97
Abstract

Aims: To determine the prevalence of Shiga toxin-producing Escherichia coli (STEC) and serotypes and virulence markers of the STEC isolates from beef and dairy cattle in Rio Grande do Sul, Brazil. Methods and Results: Faecal samples from beef cattle were collected at slaughterhouses. The isolates...

Author(s)
Timm, C. D.; Irino, K.; Gomes, T. A. T.; Vieira, M. M.; Guth, B. E. C.; Vaz, T. M. I.; Moreira, C. N.; Aleixo, J. A. G.
Publisher
Blackwell Publishing, Oxford, UK
Citation
Letters in Applied Microbiology, 2007, 44, 4, pp 419-425
Abstract

The presence of Shiga toxin-producing Escherichia coli (STEC) strains in feces samples of cattle (collected from slaughterhouses between December 2002 and November 2003) was determined using the cytotoxicity assay on Vero cells and a screening PCR system to detect stx genes. The STEC isolates were...

Author(s)
Pigatto, C. P.; Schocken-Iturrino, R. P.; Souza, E. M.; Pedrosa, F. O.; Comarella, L.; Irino, K.; Kato, M. A. M. F.; Farah, S. M. S. S.; Warth, J. F.; Fadel-Picheth, C. M. T.
Publisher
National Research Council of Canada, Ottawa, Canada
Citation
Canadian Journal of Microbiology, 2008, 54, 7, pp 588-593

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