Humans have always been fascinated by the idea of living a long time — or even living forever. Legends of the Fountain of Youth and Holy Grail giving us immortality have led us on a search that has so far been unsuccessful. Yet, we haven’t given up on the possibility of finding everlasting life.

Pneumonia is a respiratory condition that is caused by an infection of one or both lungs. This is an illness that affects more than a million people each year in the United States.