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Results of the multiplex PCR. The PCR products were analyzed by 2% agarose gel electrophoresis and staining with ethidium bromide. Lanes: 1, 100-bp marker; 2, serovar Typhimurium BN9181 (ACSSuT, DT104 strain); 3, Sal91 (ACSSuT); 4, Sal235 (SSu); 5, Sal42 (Su); 6, Sal14 (susceptible to all antibiotics tested); 7, blank.
