Bacteroides /Bac·te·roi·des/ (bak?ter-oi´dez) a genus of gram-negative, anaerobic, rod-shaped bacteria, which are
normal inhabitants of the oral, respiratory, intestinal, and urogenital cavities of humans and animals; some species can
cause potentially fatal abscesses and bacteremias.

Bacteroides genus: Their pathogenicity is limited, Infection only occurs after severe trauma to the abdominal region.
Infection could lead to abscess formation and possibly fever.

22. Rein, J. M. and Cosman, B.: Bacteroides Necrotizing Fasciitis
of the Upper Extremity. Plast. Reconstr. Surg., 48:592,