Genotypic characterization of Staphylococcus aureus isolated from bovines, humans, and food in Indonesia
Salasia, Siti Isrina Oktavia, Gadjah Mada University, Karangmalang, Yogyakarta, Indonesia | Tato, Syarifudin, Gadjah Mada University, Karangmalang, Yogyakarta, Indonesia | Sugiyono, Ngalijan, Gadjah Mada University, Karangmalang, Yogyakarta, Indonesia | Ariyanti, Dwi, Gadjah Mada University, Karangmalang, Yogyakarta, Indonesia | Prabawati, Feny, Gadjah Mada University, Karangmalang, Yogyakarta, Indonesia
The present study determined the genetic relationships between 41 Staphyloccocus (S.) aureus isolates from bovines, humans, and food using a single enzyme amplified fragment length polymorphism (AFLP) technique. We evaluated the prevalence of staphylococcal enterotoxin (SE) genes and other virulence gene determinants by PCR. The identification of S. aureus was based on culturing and biochemical tests, and by amplifying a specific section of the 23S rRNA gene. PCR amplification of the SE genes (sea, seb, sec, see, seg, seh, and sei) singly or in combination was observed. Most isolates of bovine origin harbored hla (84%) and cap5 (74%), while most isolates from humans harbored hla (73%), cap8 (91%), and fnbA (100%). Strains from food sources were positive for hla (100%), cap5 (100%), and cap8 (64%) unlike isolates from humans or bovines. A single enzyme AFLP analysis revealed a correlation between AFLP clusters of some strains and the source of the isolates The genotypic results of the present study might help to better understand the distribution of prevalent S. aureus clones among humans, bovines, and food and will help control S. aureus infections in Indonesia.
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