In this research which was done for the purpose of determination of the prevalance of Bacteroides spp.in oraldental
and Stool Samples, totally 35 Bacteroides from 420 different clinical samples were isolated. While 14
isolated Bacteroides out of 35(40%) were identified at species level, the presumptive identification of 21 isolated
Bacteroides (60%) was performed at genus level. Most of the isolated bacteria were obtained from the oral-dental
samples. Eight of these isolated bacteria obtained from the oral-dental samples were identified such as 4 of them
B.capillosus, 1 B.eggerthii, 1 B.distasonis, 1 B.ruminicola subsp.brevis and 1 non-fermentative Bacteroides group.
Six of these isolated bacteria obtained from the stool sample have been so found that 2 of them were indentified
as B.multiacidus, 1 B.capillosus, 1 B.fragilis, 1 B.uniformis and 1 B.thetaiotaomicron, which were obtained from
the stool samples, were identified such as 2 B.multiacidus, 1 B.capillous, 1 B.fragilis, 1 B.uniformis and 1
B.thetaiotaomicron. 20 of the 21 isolated Bacteroides had been obtained from the oral-dental abscess and 1 from
the stool sample.
For isolation purposes Bacteroides Bile Esculin Agar and Streptomycin-Vankomisin Blood Agar media, which
make the reproduction of the Bacteroides easier have been used.
Key words: Bacteroides, Anaerobic Isolation and Identificiation, Prevalance.
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