PHENOTYPIC CHARACTERISATION OF ENTEROCOCCI AT A TERTIARY CARE CENTRE OF SOUTH INDIA

Reena Rajan; C.Amirtha; K.M.Mohana Soundaram; V.Anandi

Volume : VI, Issue : IV, April - 2017

PHENOTYPIC CHARACTERISATION OF ENTEROCOCCI AT A TERTIARY CARE CENTRE OF SOUTH INDIA

Reena Rajan, C. Amirtha, K. M. Mohana Soundaram, V. Anandi

Abstract :

Enterococci have evolved from being commensal gut flora of little clinical significance to becoming an increasingly important cause of nosocomial infection in the last decade .The present study was undertaken to identify the species prevalence , detect vancomycin resistance among enterococci and to determine antimicrobial resistance profile.A total of 134 isolates obtained from various clinical samples were speciated by Facklam and Collins scheme.Resistance to glycopeptides were determined by agar dilution and Minimum Inhibitory Concentration(MIC) was determined by E test.Out of 134 isolates studied, 127 (94.78%) were Enterococcus faecalis and 7(5.22%) were Enterococcus faecium. . Out of 107 Enterococcus faecalis studied from urine sample, two isolates were with Minimum Inhibitory Concentration of ≥ 32 μg/ml for both vancomycin and teicoplanin by Agar dilution method and E test .Among the Enterococcus faecium isolates ,5 isolates from urine were with MIC range of 0.5 to 2 μg/ml for vancomycin by E test.