Antibiotic resistance phenotypes of the 139 non duplicate clostridia strains isolated from the feces of the 76 premature neonates included in the study.

aAntibiotic susceptibility testing was performed using the disk-diffusion method. The antibiotic disks used were amoxicillin, amoxicillin-clavulanic acid, piperacillin, piperacillin-tazobactam, ertapenem, imipenem, cefoxitine, cefotaxim, clindamycine, tetracycline, tigecycline, chloramphenicol, moxifloxacin, metronidazole, linezolide, and vancomycin.Data corresponding to 100% susceptibility among strains of one species are not presented.bS, susceptible ; I, intermediate ; R, resistant.cClostridium spp: C. baratii (n = 3); C. tertium (n = 3); C. disporicum (n = 2); Robinsoniella peoriensis (n = 2); C. glycolicum (n = 1); C. orbiscindens (n = 1).