Volume 75, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


O157:H7 producing Shiga like toxins is a food-borne pathogen frequently isolated in Bangui from patients with hemorrhagic colitis (HC). This survey provides comprehensive data on the high prevalence of O157:H7 infection in Bangui: carriage of O157:H7 by zebu () and fish, contamination of the fields at N’Goila where the butchers kill the zebus, and contamination of the field surface water along the M’Poko River upstream of the Oubangui River where fish are caught, appear to be important contributory factors. We also describe novel strains of serogroup O157:NM isolated from zebu and from fish; a variety of assays indicate that these strains belong to the enteropathogenic pathotype, though they lack certain genetic elements thought to be diagnostic for this pathotype.


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  • Received : 14 Sep 2005
  • Accepted : 06 Apr 2006
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