ABSTRACT
Introduction: Nosocomial infection is a major problem globally. Methicillin-resistant Staphylococcus aureus (MRSA) remains one of the most important causes of nosocomial infections worldwide. MRSA are the important agents causing nosocomial infections. The study was conducted in the Department of Microbiology to determine the prevalence of MRSA and antibiotic susceptibility pattern. Material and Methods: This was a retrospective study conducted from July 2016 to August 2017 in a tertiary care hospital in Northern Bihar India. All isolates were identified in patients and data provided by the Clinical and Laboratory Standards Institute (CLSI) guidelines and antibiotic susceptibility pattern considered by Kirby Bauer disc diffusion method. The information was definitely recorded and analyzed using Microsoft Excel 2007 edition. Results: 200 Staphylococcus strains isolate of were isolated from various clinical samples, Out of 200 S. aureus isolates, 73 (36.5%) were methicillin resistant S. aureus (MRSA) and 127 (63.5%) were methicillin-sensitive S. aureus (MSSA) in our labs. Although, the majority of the MRSA isolates were resulted from pus samples 30, however, the S. aureus isolates resulted from post-operative wound infection was mostly MRSA. Conclusion: In conclusion, the importance of Isolation of MRSA patients and carriers in the hospitals, regular surveillance of hospital associated infections including monitoring antibiotic sensitivity pattern and strict drug policy for antibiotics may be helpful for reducing the incidence of these infections