What are the most common etiologies of community-acquired pneumonia (CAP) in the outpatient setting?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Answer

The most common etiologies of community-acquired pneumonia (CAP) in the outpatient setting are as follows (in descending order of frequency): [3] S pneumoniae, M pneumoniae, H influenzae, C pneumoniae, and respiratory viruses.


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