[Species composition of nonpigment-forming bacteroids isolated from the intestines of healthy persons and from clinical material].

The comparative study of the specific composition of bacteroids isolated from the intestine of healthy persons and from clinical material obtained from patients with different purulent inflammatory diseases has been carried out. This study has revealed that in the former case the prevalent bacteroid species are B. vulgatus and B. distasonis and in the latter case, B. thetaiotaomicron and B. fragilis.