Isolation And Antimicrobial Susceptibility Pattern Of Staphylococcus Aureus.
Isolation and Antimicrobial Susceptibility Pattern of Staphylococcus Aureus.
Keywords:
Antimicrobial Susceptibility, Staphylococcus AureusAbstract
Introduction- Staphylococcus aureus is one of the principal human pathogens that colonizes healthy individuals as well as causes severe infections in hospitalized patients. They have differential ability to spread and cause outbreaks in hospitals. The study was done to isolate S.aureus from various clinical samples and to know their antibiogram. Methodology- The study included a total of 312 Staphylococcus aureus strains isolated from various clinical specimens. The specimens received were processed further for identification by standard microbiological procedures like direct microscopic examination, culture and various standard identification methods. Antimicrobial susceptibility testing was done by Kirby-Bauer disc diffusion method on Mueller-Hinton agar as per CLSI guidelines. Result- A total of 312 isolates of S. aureus were obtained from various clinical samples. Male to female ratio was 1.6:1. Infection rate was more in age group 46-60 years. Staphylococcus aureus isolates were more commonly obtained from surgery department (38.78%) followed by orthopedics. All the strains were 100% sensitive to Vancomycin, Netilmicin, Linezolid and Teicoplanin. Higher resistance was noted against Penicillin(94.87%), Trimethoprim/Sulfamethoxazole(72.44%).Lower resistance was noted against Nitrofurantoin(13.33%). Conclusion- The determination of the anti-microbial susceptibility is also crucial for an optimal therapy, for epidemiological purposes and for infection control measures. [Kulkarni VL NJIRM 2016; 7(4):33-38]
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