[Frequency of isolation and antibiotic sensitivity of Bacteroides related to Bacteroides bivius and Bacteroides oralis].

274 strains of the Bacteroides oralis-bivius group are studied: 112 are identified to Bacteroides bivius or B. disiens, 73 to Bacteroides oralis and 49 to Bacteroides oris or Bacteroides buccae. These strains are isolated from clinical sample: gynecologic suppurations or respiratory tract infections. The susceptibility of 63 strains to 7 antibiotics were determined. Tested antibiotics were: cefalotin, cefoxitine, cefotaxime, mezlocillin, clindamycin, metronidazole and colistine. Cefalotine has a poor activity against these strains.