In the past fifty years, Staphylococcus aureus (S. aureus) has established itself as one of the most frequent antibiotic resistant bacterial pathogens in hospitals and communities. Methicillin-resistant S. aureus (MRSA) is associated with the rise in attributable mortality due to staphylococcal infections. This study investigated the prevalence of MRSA infections, and attempted to characterize the S. aureus strains causing these infections in Mongolia -