Infectious Disease Compendium

Anaerobes

This represents a huge number of organisms, the most important of which are Bacteroides spp and Prevotella, but not limited to these organisms. They are the predominant bacteria of the gi and gu tract.

The problem with anaerobes is that resistance to clindamycin is increasing rapidly, 30% as I write this. My order for reliable killing or anaerobes is metronidazole, carbapenems, penicillin/beta-lactamase inhibitors, and cefoxitin, cefmetazole.