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Anaerobic bacteria 

Anaerobic bacteria

Chapter:
Anaerobic bacteria
Author(s):

Anilrudh A. Venugopal

and David W. Hecht

DOI:
10.1093/med/9780199204854.003.070610_update_001

May 30, 2013: This chapter has been re-evaluated and remains up-to-date. No changes have been necessary.

Update:

Gastrointestinal infections—update on the management of Clostridium difficile and enterotoxigenic Bacteroides fragilis infections.

Updated data for the Bacteroides fragilis group provided for antibiotic resistance rates in the United States of America and Europe.

New section on the work-up and treatment of complicated intra-abdominal infections.

Additions to Further reading.

Updated on 31 May 2012. The previous version of this content can be found here.
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date: 27 June 2017

Anaerobic bacteria will not grow when incubated with 10% CO2 in room air, but vary in their tolerance of different levels of oxygen. They are important commensal flora of the skin and oral, intestinal, and pelvic mucosae, and are classified according to their Gram staining characteristics and ability to produce spores: (1) Gram positive—cocci, non-spore-forming bacilli, and spore-forming bacilli (notably clostridium); (2) Gram negative—cocci and bacilli. Many anaerobic bacteria possess virulence factors that facilitate their pathogenicity, e.g. histiolytic enzymes and various toxins....

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