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A genus of gram-negative, anaerobic, non-spore-forming bacilli that forms most of the intestinal flora and may be found in smaller numbers on the oral, upper respiratory, and genital mucous membranes. Members of the species release an endotoxin that contributes to tissue destruction. They are often found in abscesses or in infections in which gas is found, e.g., on radiographic studies. All species multiply rapidly in necrotic tissue; infections that start in the colon, e.g., may spread to neighboring tissues or the bloodstream producing intra-abdominal abscesses, peritonitis, or septicemia.

Bacteroides forsythus

SEE: Tannerella forsythia.

Bacteroides fragilis

A species that may produce life-threatening infections in blood vessels, the peritoneum, or the pelvis.

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Venes, Donald, editor. "Bacteroides." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/761268/all/Bacteroides.
Bacteroides. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/761268/all/Bacteroides. Accessed May 24, 2019.
Bacteroides. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://www.tabers.com/tabersonline/view/Tabers-Dictionary/761268/all/Bacteroides
Bacteroides [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 May 24]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/761268/all/Bacteroides.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Bacteroides ID - 761268 ED - Venes,Donald, BT - Taber's Medical Dictionary UR - https://www.tabers.com/tabersonline/view/Tabers-Dictionary/761268/all/Bacteroides PB - F.A. Davis Company ET - 23 DB - Taber's Online DP - Unbound Medicine ER -