Comparison of antibiotic susceptibility tests, plasmid profiles and restriction enzyme analysis of plasmid DNA of methicillin susceptible and resistant-Staphylococcus aureus strains isolated from intensive care units.

Objective: To differentiate methicillin-resistant Staphylococcus aureus (S. aureus) (MRSA) and methicillin-sensitive S. aureus (MSSA) strains and detect the source of epidemic strains and prevent their access to patients.