Fifty-eight Salmonella enterica serovar Heidelberg isolates isolated from food animals were teste... more Fifty-eight Salmonella enterica serovar Heidelberg isolates isolated from food animals were tested for antimicrobial susceptibilities and further characterized for select antimicrobial resistance genes, plasmid carriage, class 1 integrons, and genetic relatedness using pulsed-field gel electrophoresis (PFGE). Seventy-two percent of isolates displayed resistance to at least one of the antimicrobial agents tested, while 24% exhibited resistance to eight or more antimicrobial agents. Resistance was most commonly observed to tetracycline (71%), streptomycin (62%), and kanamycin (52%). Isolates obtained from cattle and swine displayed the highest rates of resistance while isolates from chickens more often displayed susceptibility to the tested antimicrobials. When resistance was detected, a corresponding resistance gene was detected in 97.3% of the isolates. Thirteen percent of the isolates contained class 1 integrons containing at least one resistance gene, most often either the aadA or...
Page 1. 1 Characterization of Salmonella enterica serovar Heidelberg from Turkey-Associated 1 Sou... more Page 1. 1 Characterization of Salmonella enterica serovar Heidelberg from Turkey-Associated 1 Sources 2 Pravin Kaldhone 1,2* , Rajesh Nayak 3 , Aaron M. Lynne 1 , Donna E. David 1 ,Patrick F. 3 McDermott 4 , Catherine M. Logue 5 , and Steven L. Foley 1,2,* 4 ...
Fifty-eight Salmonella enterica serovar Heidelberg isolates isolated from food animals were teste... more Fifty-eight Salmonella enterica serovar Heidelberg isolates isolated from food animals were tested for antimicrobial susceptibilities and further characterized for select antimicrobial resistance genes, plasmid carriage, class 1 integrons, and genetic relatedness using pulsed-field gel electrophoresis (PFGE). Seventy-two percent of isolates displayed resistance to at least one of the antimicrobial agents tested, while 24% exhibited resistance to eight or more antimicrobial agents. Resistance was most commonly observed to tetracycline (71%), streptomycin (62%), and kanamycin (52%). Isolates obtained from cattle and swine displayed the highest rates of resistance while isolates from chickens more often displayed susceptibility to the tested antimicrobials. When resistance was detected, a corresponding resistance gene was detected in 97.3% of the isolates. Thirteen percent of the isolates contained class 1 integrons containing at least one resistance gene, most often either the aadA or...
Page 1. 1 Characterization of Salmonella enterica serovar Heidelberg from Turkey-Associated 1 Sou... more Page 1. 1 Characterization of Salmonella enterica serovar Heidelberg from Turkey-Associated 1 Sources 2 Pravin Kaldhone 1,2* , Rajesh Nayak 3 , Aaron M. Lynne 1 , Donna E. David 1 ,Patrick F. 3 McDermott 4 , Catherine M. Logue 5 , and Steven L. Foley 1,2,* 4 ...
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