Medically reviewed by Sanja Jelic, MD Pneumonia can be fatal for infants, older adults, and people with weak immune systems.If fluid fills air sacs in the lungs, this can impair oxygen flow to other vital organs.

Every year millions of people cycle through America’s prisons and jails. Many of them never make it home. Incarcerated people die of medical neglect. They die because guards beat them or because they get into fights with each other. They get sick or ...