[Bacteroides fragilis bacteremias: clinical and evolutive features about 33 cases (author's transl)].

The frequency of non soil dwelling anaerobic infections is increasing. The authors report 33 cases of Bacteroides fragilis bacteremias, and study the responsabilities of different factors of prognosis (especially age and underlying conditions). Nitroimidazoles are very active against all Bacteroides fragilis. This therapy is the drug of choice for such infections.