Detection of toxin-associated genes in seven spa-types of Staphylococcus aureus in Iraq

2021 Indian Journal of Forensic Medicine & Toxicology  
Staphylococci frequently cause opportunistic infections in patients with underlying disease, such as those with prosthetic devices, surgical patients, and patients with diabetes or individuals undergoing dialysis. Consequently, detecting the toxin-associated genes in different S. aureus strains, isolated from patients with wound and burn injuries and their environments, is essential to monitor and prevent the complication in such cases. Methods: Identification of S. aureus that isolated from
more » ... n and wound injuries has been done according to the biochemical tests, then Spa-typing method was used to diagnose at the strain level. Toxin-associated genes, enterotoxin gene(sea, seb),exfoliative gene(eta), toxic shock syndrome gene(tst), and pantonevalentine leukocidin (pvl), were detected by polymerase chain reaction (PCR) method. Results: Two isolates were harboring tst and a single isolate harbored pvl, at the time that no isolates were found eta and seb positive among 19 S.aureus. While sea was the predominant toxin-associate gene in the studied S. aureus strains, it was detected in 13 isolates. Conclusion: Distribution of specific spa-type/sea-positive in diabetic foot ulcers at hospitals, indicating the poor sanitization conditions at Iraqi wound wards, and it is recommended to take swabs from the patients and their environments as a routine procedure.
doi:10.37506/ijfmt.v15i3.15945 fatcat:mua2hjb7hrgplpg74mdmyhu73q