Journal article

Characterisation of Shiga toxin-producing Escherichia coli O157 strains isolated from humans in Argentina, Australia and New Zealand

Gerardo A Leotta, Elizabeth S Miliwebsky, Isabel Chinen, Estela M Espinosa, Kristy Azzopardi, Sharon M Tennant, Roy M Robins-Browne, Marta Rivas

BMC MICROBIOLOGY | BMC | Published : 2008

Abstract

BACKGROUND: Shiga toxin-producing Escherichia coli (STEC) is an important cause of bloody diarrhoea (BD), non-bloody diarrhoea (NBD) and the haemolytic uraemic syndrome (HUS). In Argentina and New Zealand, the most prevalent STEC serotype is O157:H7, which is responsible for the majority of HUS cases. In Australia, on the other hand, STEC O157:H7 is associated with a minority of HUS cases. The main aims of this study were to compare the phenotypic and genotypic characteristics of STEC O157 strains isolated between 1993 and 1996 from humans in Argentina, Australia and New Zealand, and to establish their clonal relatedness. RESULTS: Seventy-three O157 STEC strains, isolated from HUS (n = 36), ..

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