A Study on High and Low level Drug Resistance Pattern Among Clinical Isolates of Enterococci .

Rajan, Reena and Karthikeyan, D (2021) A Study on High and Low level Drug Resistance Pattern Among Clinical Isolates of Enterococci . Biomedical and Pharmacology Journal, 14 (3). pp. 1189-1196. ISSN 09746242

Full text not available from this repository.

Abstract

The combined abilities of colonisation and both inherent and acquired resistance have made Enterococci a significant human pathogen. Aims & Objectives: This study was done to determine the Minimum Inhibitory Concentration of various antibiotics against Enterococci and to correlate the phenotypic and genotypic characteristics of Enterococci with low level and high level drug resistance. A total of 774 isolates of Enterococci obtained from various clinical samples were subjected to antimicrobial susceptibility testing by Kirby Bauer Disk Diffusion method. The Minimum Inhibitory Concentration of various antibiotics were determined by Vitek 2 automated system, agar dilution and E test. Results: 15 out of 774 isolates showed the presence of vancomycin resistant genes by Multiplex PCR. 10 (90.91 %) isolates out of 11 E. faecalis with van A gene showed high level resistance to Penicillin (16-64 µg/ml). 8 (72.73 %) out of 11 isolates showed high level resistance to Gentamicin (512-1024 µg/ml). 6 (54.55 %), out of 11 isolates were resistant to â lactams. One isolate of E. faecalis from urine with van B gene showed showed high level resistance to Penicillin (32 µg/ml), Linezolid (e” 8µg/ml), high level resistance to Gentamicin (1024 µg/ml), Fluoroquinolones (e” 8µg/ml) and Macrolides (e” 8µg/ml). Conclusion: Isolates of Enterococci resistant to glycopeptides, penicillin, Betalactams and aminoglycosides have important clinical implications in the treatment for infection. © 2021 Elsevier B.V., All rights reserved.

Item Type: Article
Subjects: Immunology and Microbiology > Microbiology
Divisions: Medicine > Aarupadai Veedu Medical College and Hospital, Puducherry > Microbiology
Depositing User: Unnamed user with email techsupport@mosys.org
Last Modified: 04 Dec 2025 07:16
URI: https://vmuir.mosys.org/id/eprint/3259

Actions (login required)

View Item
View Item