What causes bacterial pneumonia?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Bacterial pneumonia is caused by a pathogenic infection of the lungs and may present as a primary disease process or as the final coup de grace in the individual who is already debilitated. For example, a historical review of the 1918-19 influenza pandemic suggests that the majority of deaths were not a direct effect of the influenza virus, but they were from bacterial coinfection. [5]

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