Extended-spectrum cephalosporin-resistant Salmonella enterica serovar Heidelberg strains (JF6X01.0022/XbaI.0251, JF6X01.0326/XbaI.1966, JF6X01.0258/XbaI.1968, and JF6X01.0045/XbaI.1970) have been identified in the United States with pulsed-field gel electrophoresis. Our examination of isolates showed introduction of these strains in the Netherlands and highlight the need for active surveillance and intervention strategies by public health organizations.
Keywords: AmpC; IncI1 plasmids; Salmonella enterica serovar Heidelberg; Salmonella infections; antibacterial agents; antimicrobial resistance; bacteria; extended-spectrum cephalosporins; the Netherlands.