Find information on medical topics, symptoms, drugs, procedures, news and more, written in everyday language.

Severe Pneumonia

Severe Pneumonia
Severe Pneumonia

Pneumonia is an infection of the small air sacs of the lungs (alveoli). The white patches in both lungs represent multiple infected areas. This is an example of severe pneumonia.

Photo courtesy of Thomas M. File, Jr., MD MSc MACP FIDSA FCCP.