Antibiotic susceptibility of the subspecies of Bacteroides fragilis.

摘要: Strains (115) of Bacteroides fragilis were identified at the subspecific level and tested for susceptibility to ampicillin, cephalothin, chloramphenicol, clindamycin, penicillin, tetracycline using an agar dilution technique. We following strains: B. subsp. distasonis , 12; 39; ovatus 10; thetaiotaomicron 32; vulgatus “other,” 12. There no marked differences in between subspecies. One strain had a minimal inhibitory concentration 12.5 μg/ml but all other strains susceptible. All susceptible chloramphenicol. Susceptibility was variable. Only few penicillins cephalothin.