“…Sensitivity to antibiotics was detected by the disc-diffusion method after spreading cell suspensions on R2A agar plates and considered as susceptible when the diameter of the inhibition zone was over 1.2 cm. The tested antibiotics were (μg per disc, unless indicated): amikacin (30), amoxicillin (20), ampicillin (10), bacitracin (0.04 IU), carbenicillin (100), cefamezin (30), cefoxitin (30), cefradine (30), cephalexin (30), chloramphenicol (30), ciprofloxacin (5), clindamycin (2), doxycycline (30), erythromycin (15), gentamicin (10), kanamycin (30), lincomycin (2), minocycline (30), nalidixic acid (30), neomycin (30), norfloxacin (10), novobiocin (30), nystatin (100), ofloxacin (5), oxacillin (1), penicillin G (10 IU), polymyxin B (300 IU), rifampicin (5), streptomycin (10), tetracycline (30) and vancomycin [30,43].…”