info:eu-repo/semantics/article
Intraserotype diversity among Argentinian verocytotoxigenic Escherichia coli detected by random amplified polymorphic DNA analysis
Fecha
2006-05Registro en:
Krüger, Alejandra; Padola, Nora Lía; Parma, Alberto Ernesto; Lucchesi, Paula Maria Alejandra; Intraserotype diversity among Argentinian verocytotoxigenic Escherichia coli detected by random amplified polymorphic DNA analysis; Society for General Microbiology; Journal of Medical Microbiology; 55; 5; 5-2006; 545-549
0022-2615
1473-5644
CONICET Digital
CONICET
Autor
Krüger, Alejandra
Padola, Nora Lía
Parma, Alberto Ernesto
Lucchesi, Paula Maria Alejandra
Resumen
Most cases of diarrhoea-associated haemolytic uraemic syndrome (HUS) are caused by verocytotoxin-producing Escherichia coli (VTEC). Argentina has the highest worldwide incidence of HUS, but with a lower incidence of VTEC O157:H7 serotype than non-Latin American countries. A large number of VTEC serotypes have been isolated from cattle and cattle-derived food products in Argentina. The aim of this work was to study intraserotype genetic diversity among these VTEC strains by random amplification of polymorphic DNA (RAPD). Strains were selected that belonged to the same serotype, but had been isolated from different sources (cattle and meat). Intraserotype genetic diversity was detected among strains belonging to O20:H19, O113:H21, O117:H7, O157: H7, O171:H2 and O174:H21, but only one RAPD profile corresponded to strains belonging to O91:H21, although these isolates were from different sources.