Abstract

Five bacterial strains were isolated from food samples, and were not easily distinguished from Salmonella via conventional methods. These bacterial strains wereidentified as Citrobacter spp. from their biochemical properties. Despite this, their characteristics after being cultured resembled those of Salmonella, with similar kinds of colony formation patterns on XLD, DHL and TSI agar. Since these salmonella-like strains grew at a rate and produced colonies with black centers characteristic of Salmonella, the selective detection of Salmonella in the presence of these salmonella-like strains was impossible, based on conventional methods.

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