Saudi Journal of Pathology and Microbiology (SJPM)
Volume-3 | Issue-10 | 398-401
Original Research Article
Vancomycin Resistance in Clinical Isolates of Methicillin Resistant Staphylococcus aureus from a Tertiary Care Hospital
Aparna Yadav, Dr Akansha Sharma, Antariksh Deep
Published : Oct. 30, 2018
Abstract
Staphylococcus aureus is one of the most common causes of Blood Stream
infections (BSI), skin and wound infections, osteomyelitis, endocarditis, and
nosocomial infections, especially pneumonia, surgical site infections (SSI), and
continue to be a major cause of community-acquired infections. Methicillin Resistant
Staphylococcus aureus (MRSA) is an important cause of community and hospital
acquired infections. MRSA are mainly nosocomial and are increasingly reported from
many countries worldwide. The purpose of present study was to determine the
sensitivity of S. aureus isolated from infected patients to methicillin and to evaluate
the possible presence of VRSA in our tertiary care hospital. Staphylococci were
isolated and identified by standard microbiological procedures. Methicillin resistance
was detected by using cefoxitin (30 µgm) by disc diffusion method. MRSA strains
detected were then subjected to vancomycin agar screen test and E test to detect
vancomycin resistance. Out of the total 500 S.aureus isolates, methicillin resistance
was observed in 47.4% of isolates. . By E-test, 24.1 % MRSA isolates had
Vancomycin MIC value of 0.75 and 21.9% of MRSA had Vancomycin MIC value of
0.5. Only one isolate had MIC value of 2.