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  • Title: Plasmid profiles and randomly amplified polymorphic DNA analysis of Salmonella enterica serotype Enteritidis strains from outbreaks and sporadic cases in Turkey.
    Author: Tekeli A, Erdem B, Sahin F, Koyuncu E, Karasartova D, Bayramova M.
    Journal: New Microbiol; 2006 Oct; 29(4):251-60. PubMed ID: 17201091.
    Abstract:
    The aim of the study was to investigate the characteristics of Salmonella serotype Enteritidis strains isolated from outbreaks and sporadic cases in Turkey by plasmid profiles and randomly amplified polymorphic DNA (RAPD) patterns. A total of 64 S. Enteritidis clinical strains were selected from the culture collection of the Enterobacteria Laboratory of Ankara University Medical School Department of Microbiology and Clinical Microbiology for molecular analysis using the plasmid profiles and RAPD method. Fifty-six isolates (88%) harbored one to four plasmids ranging in size from 2.5 to 100 kbp. 57 kbp plasmids were the most common plasmids, and forty-four strains (69%) carried 57 kbp plasmids alone or together with other plasmids. The outbreak strains carried the same plasmid profile: three plasmids sized 57, 40, 3.0 kbp. None of the strains analyzed displayed any RAPD bands with the primer OPB-17. By using primer p-1254, 42 strains (66%) were divided into fourteen RAPD patterns. Ten of the outbreak strains (77%) showed >80% similarity by cluster analysis program. Analysis of RAPD-PCR with primer p-1254 proved an easy, rapid and discriminative method complementing antibiogram and plasmid profiles in routine laboratories, and may contribute to the investigations of S. Enteritidis which still cause outbreaks in Turkey. This study presents the first report on S. Enteritidis isolates in Turkey investigated by plasmid profiles and RAPD methods.
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