Fecal shedding of Escherichia coli O157, Salmonella, and Campylobacter in Swiss cattle at slaughter.

摘要: Fecal samples from 2,930 slaughtered healthy cattle were examined with the following goals: (i) to monitor shedding of Escherichia coli O157, Salmonella, and Campylobacter in cattle; (ii) further characterize isolated strains. The percentage that tested positive for E. O157 by PCR was 1.6%. Thirty-eight strains different animals agglutinated Wellcolex isolated. Of six sorbitol-negative strains, five stx2 genes (two times stx2c three stx2), one strain stx1 genes. All belonged serotypes O157:H7- O157:H7 harbored eae type gamma 1 ehxA 32 sorbitol-positive negative stx O157:H2, O157:H7, O157:H8, O157:H12, O157:H19, O157:H25, O157:H27, O157:H38, O157:H43, O157:H45, O157:H-. O157:H45 subtype alpha therefore seem be atypical enteropathogenic Whereas none 1,000 95 935 (10.2%) Campylobacter, all identified as C. jejuni. Sixteen resistant tetracycline, nalidixic acid/ciprofloxacin, four streptomycin, acid/ciprofloxacin streptomycin. zoonotic pathogens slaughter is strongly correlated hazard carcass contamination. Therefore, maintenance hygiene crucial importance.