Which anaerobic organisms can cause bacterial pneumonia?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Pneumonia due to anaerobes typically results from aspiration of oropharyngeal contents, as previously mentioned. These infections tend to be polymicrobial and may consist of the following anaerobic species, some of which have already been discussed above: Klebsiella, Peptostreptococcus, Bacteroides, Fusobacterium, and Prevotella.

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