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. 2021 Sep 7;10(9):1082.
doi: 10.3390/antibiotics10091082.

Biofilm Producing Enterococcus Isolates from Vaginal Microbiota

Mallika Sengupta  1 , Soma Sarkar  2 , Manideepa SenGupta  3 , Sougata Ghosh  3 , Riya Sarkar  4 , Parthajit Banerjee  5
Affiliations

Biofilm Producing Enterococcus Isolates from Vaginal Microbiota

Mallika Sengupta et al. Antibiotics (Basel). .

Abstract

Background: Enterococcus is an important cause of infection in the hospital as well as in the community.

Methods: A prospective study was done in Medical College, Kolkata for a period of 2 years (from January 2018 to December 2019). After obtaining clearance from the Institutional Ethics Committee, Enterococcus isolates from cases of vaginitis were included in the study. Identification of Enterococcus species was done by Gram stain and conventional biochemical tests along with automated identification by VITEK 2 Compact. These isolates were tested for antimicrobial susceptibility to different antibiotics by Kirby Bauer disc diffusion method and minimum inhibitory concentration (MIC) by VITEK 2 Compact. Interpretation of susceptibility was done according to the Clinical and Laboratory Standards Institute (CLSI) 2017 guidelines. Biofilm detection for Enterococcus species was done.

Results: During the period of 2 years, 39 isolates of Enterococcus spp. were obtained from vaginitis cases. Among these, 27 were Enterococcus faecalis and 12 Enterococcus faecium. All isolates were highly susceptible to vancomycin, teicoplanin, and linezolid. Biofilm was detected in eight isolates of which five were strong biofilm producer and three moderate biofilm producers.

Conclusion: Biofilm production is an important virulence factor in Enterococcus isolates from vaginitis.

Keywords: biofilm; multidrug resistance; vaginal discharge.

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Conflict of interest statement

The authors declare no conflict of interest.

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