For many years, the role of anaerobic bacteria in human diseasewas considered important only in such clostridial diseases as gas gangrene,botulism and tetanus. In the last 10 years, however, the developmentof new methods to isolate and identify anaerobic bacteria has establishedthe pathogenic role of non-sporeforming anaerobic bacteria in awide variety of clinical infections in humans. Bacteroides fragilis isnow known to account for approximately one-fourth of all anaerobicbacteria isolated from human clinical specimens.
Daniel, Steven, "Isolation and Identification of Obligately Anaerobic Bacteria from Bovine Lung Abscesses" (1980). Faculty Research & Creative Activity. 384.