Characterization of Salmonella isolates from poultry sources in Iran
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Abstract:
BACKGROUND: Salmonellosis is one of the most importantzoonotic diseases throughout the world. OBJECTIVES: Thepurpose of this study was to characterize a large collection ofSalmonella isolates from different poultry sources in Iran.METHODS: A total of 123 Salmonella isolates from differentpoultry sources were subjected to drug susceptibility test,hemolysin production, motility test, and plasmid profile (50isolates). RESULTS: Seventy-one resistance patterns were foundto 29 antimicrobial agents among 123 Salmonella isolates, inwhich 81% of isolates were resistant to more than oneantibacterial agent. The resistance patterns of 123 isolates to 10commonly used antibacterials in Iranian poultry industry werealso quite variable and included 31 patterns. Four differentplasmid patterns were found among 50 Salmonellaisolates. Fiftyfour percent of Salmonella isolates harbored one or threeplasmids with approximate molecular size ranging from 2.3 to68 kb. No plasmid was detected in 46% of isolates. Aband of 68kb size was detected in all isolates that harbored plasmid. Allisolates were motile but no isolate showed hemolysinproduction. CONCLUSIONS: The frequency of resistance toantibacterial agents among avian Salmonella isolates is a majorpublic health concern.
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Journal title
volume 7 issue 1
pages 35- 41
publication date 2013-04-01
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