Pneumonia

Pneumonia is a common lung infection caused by bacteria, a virus or fungi.  Pneumonia and its symptoms can vary from mild to severe. Many treatments for pneumonia are available. Treatment depends on the cause of your pneumonia, how severe your symptoms are, and your age and overall health. Most healthy people recover from pneumonia in one to three weeks, but pneumonia can be life-threatening. The good news is that pneumonia can be prevented—by getting an annual flu shot (as flu often leads to pneumonia), frequently washing your hands, and for people at high risk, getting a vaccine for pneumococcal pneumonia.

The American Lung Association has detailed information about symptoms, diagnosis and treatment for many types of pneumonia, as well as important prevention information.