The prevalence of serine-aspartate dipeptide-repeat region (sdr C and E)‎ putative virulence gene among local isolates of Staphylococcus aureus from different sources

الملخص EN

Staphylococcus aureus is an important bacterial pathogen associated with a wide range of infections due to its ability to produced several types of virulence factors.

The study aimed to determine the prevalence of serine-aspartate dipeptide-repeat region (sdr C and E) genes among S.

aureus isolates from different sources.

A total of 37 isolates was conducted in this study divided into 17 isolates from tonsils infections and a 20 isolates from nasal carriage, the prevalence of sdrC and sdrE genes was detected by polymerase chain reaction technique.

The results showed high prevalence of sdrC and sdrE genes among bacteria from tonsils infections in compared with isolates of nasal carriage with high significant differences.

Also, sdrC gene was high prevalent than sdrE in tonsils isolates than in nasal carriage.

In brief, the sdr genes highly prevalent in S.

aureus isolates from invasive infections when compared with nasal carriage isolates with predominant of sdrC gene.