Escherichia coli O157:H7, Salmonella Typhimurium and Salmonella Enteritidis, are very important causative pathogens of foodborne diseases and were investigated for their susceptibility to 15 antimicrobial agents. Most O157:H7 strains isolated from domestic animals showed high susceptibility to all the antimicrobial agents tested. However a majority of S. Typhimurium strains showed a tendancy toward multidrug resistance. S. Enteritidis strains were a little more susceptible to antimicrobials than S. Typhimurium. In this study fluoroquinolones such as enrofroxacin and norfloxacin were found to be effective agents against both O157:H7 and Salmonella.
(Lab. of Zoonosis, Department of Feed Safety)
