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Ethidium bromide-stained 2% agarose gel showing the results of electrophoresis of products of the PCR reaction. A 496-bp band is seen in each lane with the product of the PCR for Salmonella species; bands are not seen in negative lanes. A 496-bp band is seen in lane 2, 3 and 4 with the product of the PCR for genus Salmonella. Lane 1 = ladder; Lane 2–5 = Clinical Isolate; Lane 6 = Positive control; Lane 7 = Negative control
