| detection and frequency of vt1, vt2 and eaea genes in escherichia coli o157 and o157:h7 strains isolated from cattle, cattle carcasses and abattoir environment in istanbul. | the aim of this study was to detect vt1, vt2 and eaea genes and to determine the frequency of these genes in escherichia coli o157 and o157:h7 strains isolated from cattle, cattle carcasses and environmental samples of the 5 abattoirs located in istanbul, turkey. for this, the presence of vt1, vt2 and eaea genes in 26 strains of e. coli o157:h7 and 6 strains of o157 was investigated by multiplex-pcr. the results have shown that eaea gene was detected in all o157 and o157:h7 strains tested. both ... | 2006 | 16307816 |
| frequency of escherichia coli o157:h7 in turkish cattle. | in this study, five abattoirs in istanbul were visited between january 2000 and april 2001. during these visits, 330 cattle were selected by a systematic sampling method. cattle were examined clinically and breed, age, and sex were recorded. rectal swabs were taken immediately after slaughter. immunomagnetic separation was performed, and sorbitol-negative colonies were selected on sorbitol macconkey agar with cefixime and tellurite (ct-smac agar). these colonies were checked for 4-methylenebelli ... | 2002 | 12380752 |
| contamination of bovine carcasses and abattoir environment by escherichia coli o157:h7 in istanbul. | the aim of this study was to investigate contamination of carcasses and abattoir environment with escherichia coli o157:h7. five abattoirs in istanbul were visited between january 2000 and april 2001. during visits, sampling was performed and a total of 330 cattle were selected. cattle were examined for the presence of faeces on the hide (abdomen and legs) before slaughter. the swabs from the carcasses and environmental samples (abattoir floor, benches including conveyors, knives, aprons, saws, ... | 2003 | 12810296 |