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Isolation and characterisation of Shiga toxin-producing Escherichia coli O157:H7 from calves in Argentina |
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| Authors: | Chinen I Otero J L Miliwebsky E S Roldán M L Baschkier A Chillemi G M Nóboli C Frizzo L Rivas M |
| Institution: | Servicio Fisiopatogenia, Instituto Nacional de Enfermedades Infecciosas - ANLIS Dr. Carlos G. Malbrán, Buenos Aires, Argentina. |
| Abstract: | Four hundred and twenty-two calves were examined for intestinal carriage of Shiga toxin-producing Escherichia coli O157:H7 using conventional plating. Two (0.5%) E. coli O157 were recovered. They were compared with 96 Argentine strains of different origin by pulsed-field gel electrophoresis, phage typing and PCR-RFLP of stx2 genes. One strain isolated from a calf, was closely related with 18 strains of clinical origin. |
| Keywords: | Cattle Clonal relatedness Haemolytic uraemic syndrome STEC O157:H7 Virulence factors |
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