Antibiotic resistance in methicillin resistant staphylococcus aureus (MRSA)

Abstract

Methicillin resistant S. aureus (MRSA) is the term used to refer strains of S. aureus which have intrinsic resis¬tance to all fi-lactam antibiotics. These strains are also resistant to many other antibiotics and effective treatment of serious infections has often proved to be difficult. In this study antibiotic resistance patterns were determined for 42 MRSA strains isolated from nosocomial infections by using disc diffusion method. Resistance to antibiotics ranged from 26-92%. All strains were sensitive to vancomycin. Thirty-one (73%) of the strains were found to be multidrug resistant and the severity of multiresistance ranged from five to nine antibiotics.