Salmonella enterica serotype Heidelberg (S. Heidelberg) is frequently implicated in human foodborne Salmonella infections and\noften produces more severe clinical disease than other serotypes. Livestock and poultry products represent a potential risk for\ntransmission to humans. The purpose of this study was to evaluate 49 S. Heidelberg veterinary isolates for exponential growth rate\n(EGR), PFGE pattern, and antimicrobial resistance to evaluate these parameters asmechanisms by which S. Heidelberg emerged as\na virulent foodborne pathogen. Isolates were categorized by species of origin; clinical or environmental sources; and time frame of\nrecovery.Growth rates were determined in nutrient media using serial dilutions and colony counts; PFGE was performed according\nto the CDC PulseNet protocol. Minimum inhibitory concentration and susceptibility determinations were performed against\nantimicrobials important in human medicine. Eighteen unique PFGE patterns were detected in the isolates tested. Antimicrobial\nresistance was significantly greater (
Loading....