Pneumonia

Pneumonia is a common lung infection caused by germs, such as bacteria, viruses, and fungi. It can be a complication of the flu, but other viruses, bacteria and even fungi can cause pneumonia. Pneumonia and its symptoms can vary from mild to severe. 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 it 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.