Genetic polymorphism of agr Locus and antibiotic resistance of Staphylococcus aureus at two hospitals in Pakistan
DOI:
https://doi.org/10.12669/pjms.301.4124Keywords:
S. aureus, agr, MRSA, MSSA.Abstract
Objective: The accessory gene regulator (agr) locus in Staphylococcus aureus (S. aureus) is a global regulator of quorum sensing and controls the production of virulence factors. This study was carried out to investigate the agr specific groups both in methicillin resistant and sensitive Staphylococcus aureus (MRSA and MSSA) and their relation with antibiotic resistance.
Methods: A total of 90 clinical S. aureus isolates were studied from two tertiary care hospitals. The isolates were identified by standard biochemical tests. Methicillin resistance was confirmed by oxacillin and cefoxitin resistance. Multiplex PCR was used to determine the agr groups.
Results: MRSA prevalence was found to be 53.3%.The agr groups





