Evaluation of antibiotic resistance in Enterococcus strains isolated from various clinical materials

Collected from various clinics and isolated from clinical materials, 156 enterococcus strains were used in this study in microbiology laboratory at Faculty of Medicine, Gazi University. The percentages and numbers of the enterococcus isolates which were isolated from various clinical materials which are as follows: 112 (71,8%) from urine, 13 (8,3%) from scared tissue biopsy, 11 (7,1%) from blood culture, 9 (5,8%) from rectal sample, 3 (2,9%) from tissue biopsy, 3 (2,9%) from peritoneum, 2 (1,9%) from abscess, 2 (1,9%) from throat culture, and 1 (0,64%) from bile. Via Kirby-Bauer disk diffusion method, various antibiotic resistances were studied by isolating 156 enterococcus strains and strain identification. Among the enterococcus isolates, the identifications are as the following percentages and numbers: 126 (80,8%) from Enterococcus faecalis, 28 (18,6%) from Enterococcus faecium, 2 (1,3%) from Enterococcus gallinarum/casseliflavus. The enterococcus types were detected to be mostly resistant to the followings: (75,9%) tetracycline, (54,5%) gentamicin, (53,1%) eritromicin, (44,8%) ciprofloxacin, (40,7%) ofloxacin, (35,9%) ceftriaxone, (26,2%) penicillin, (23,4%) trimetoprim/sulfamethoxazole, (5,5%) levofloxacin, (2,8%) linezoid, (1,4%) vancomycin and (0,7%) nitrofurantoin.