Status of Methicillin Resistant Staphylococcus aureus Infections and Evaluation of PVL Producing Strains in Belgaum, South India
Journal Title: Journal of Krishna Institute of Medical Sciences University - Year 2012, Vol 1, Issue 2
Abstract
Background: Panton Valentine Leukocidin (PVL) toxin, responsible for increased virulence and more severe infections can be found in both Methicillin-sensitive and Methicillin-resistant strains of Staphylococcus aureus (MSSA and MRSA). Aims & Objectives: To generate baseline data on the extent of MRSA infections and to estimate the frequency of PVL-positive S. aureus in Belgaum, South India. Material & Methods: 70 clinical isolates of S. aureus were obtained from various laboratories in Belgaum city. These isolates were identified, phenotypically characterized as MRSA/MSSA by disc diffusion method using oxacillin discs (1 µg) and genetically by multiplex PCR for mecA and femB genes. PCR was subsequently carried out on all isolates to detect LukS-PV and LukF-PV genes, the markers for potential producers of PVL toxin. Results: 27 out of 70 isolates (38.6%) were confirmed as MRSA by PCR for mecA. The prevalence of PVL gene was 85.1% and 48.8% in MRSA and MSSA respectively. The overall prevalence of PVL positive S. aureus was 62.85%. Conclusion: Our study showed high percentage of PVL positive MRSA and MSSA, higher than the most reports worldwide. In the backdrop of bacterial strains gaining multiple drug resistance, our study warrants further epidemiological studies in hospitals and community levels in the region.
Authors and Affiliations
Harleen Kaur , Shashank Purwar , Archana Saini , Harbhajan Kaur , S. G. Karadesai , Sanjiva D Kholkute , Subarna Roy
Keywords
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