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alues and accordingly should only be used sparingly.Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium) causes gastroenteritis in many countries. However, in Brazil there are few studies that have conducted a virulence characterization of this serovar. The aim of this study was to evaluate the virulence potential of S. Typhimurium strains isolated in Brazil. Forty S. Typhimurium strains isolated from humans (n = 2 and food (n = 2 from Brazil were studied regarding their invasion and survival in human epithelial cells (Caco-2) and ma