Abstract
<i>Clostridium</i> species cause diseases in humans that result from consumption of undercooked beef. The objectives of this study were to isolate <i>Clostridium</i> species from beef then the detection of the presence of <i>tpi</i> housekeeping gene as well as determination of the antibiotic resistant profile of the isolates. Twenty six (26) beef samples were bought from butcheries, supermarkets and street vendors. The samples were analyzed for the characteristics of <i>Clostridium</i> species and a total of 78 presumptive isolates were subjected to Gram-staining, catalase test, API 20A sugar fermentation profiles 16S rRNA and <i>tpi</i> species specific PCR analysis. Susceptibility profiles to 8 antibiotics were determined and antibiotic resistance patterns were compiled. Large proportions (93.3%-100%) of the isolates were penicillin, vancomycin and erythromycin resistant. PCR were performed to amplify species-specific 16S rRNA gene to confirm the identity of the isolates and 44.7% of the isolates were positively identified as <i>Clostridium</i> species. PCR were performed to amplify <i>tpi</i> housekeeping gene fragments. The <i>tpi</i> housekeeping gene produced amplicons of 501bp after PCR amplification and 19% of the isolates possess <i>tpi</i> housekeeping gene which confirmed the presence of <i>Clostridium</i> species in beef.
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