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Article
April 1961

Bacteremia Due to Bacteroides: Review of 11 Cases

Author Affiliations

ROCHESTER, MINN.

Fellow in Medicine, Mayo Foundation (Dr. McHenry); Section of Medicine, Mayo Clinic and Mayo Foundation (Dr. Wellman, Dr. Martin). The Mayo Foundation, Rochester, Minn., is a part of the Graduate School of the University of Minnesota.

Arch Intern Med. 1961;107(4):572-577. doi:10.1001/archinte.1961.03620040098011
Abstract

Recent experiences with infections due to Bacteroides prompted us to review some of our data on patients with bacteremia due to organisms of this group. The review covered the period from February 1, 1948, through February 28, 1959. Three of the patients previously were included in a study of gram-negative bacteremias by members of our group.1

Bacteriologic Considerations  The Bacteroidaceae2 are anaerobic, gram-negative, non-spore-forming bacilli, some of which normally inhabit the pharynx and the gastrointestinal and female genital tracts. Upon occasion, these organisms may become pathogenic for man, and failure to obtain anaerobic cultures may conceal the fact that they are present in sites of infection.3,4 A recent review of the world literature cited 330 cases of various human infections as being due to Bacteroides; bacteremia was present in at least half of these cases.5During the period covered by the present study, the Section of

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