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Bacteroides species in the normal neonatal faecal flora

Published online by Cambridge University Press:  25 March 2010

V. O. Rotimi  and
B. I. Duerden
V. O. Rotimi
Affiliation:
Department of Medical Microbiology, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX
B. I. Duerden
Affiliation:
Department of Medical Microbiology, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX
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Summary

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Bacteroides spp. were isolated from the faeces of neonates and identified by rapid modifications of established conventional methods. Gram-negative anaerobic bacilli were recovered from 12 out of 16 neonates and a heavy growth of Bacteroides spp. was obtained from all 12 specimens. Twelve representative isolates from each subject were selected for identification; 141 of the 144 Bacteroides isolates belonged to the B. fragilis group and three to the B. melaninogenicus/oralis group. Eight species were represented within the B. fragilis group. B. vulgatus (c. 46%) and B. thetaiotaomicron (c. 30 %) were the predominant species. B. fragilis, the type-species of the group, formed only a small proportion of neonatal faecal flora. The proportional representation of individual species were similar to that found in adults but B. asaccharolyticus was not represented.

Type
Research Article
Information
Journal of Hygiene , Volume 87 , Issue 2 , October 1981 , pp. 299 - 304
Copyright
Copyright © Cambridge University Press 1981

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