A healthy person can catch Pneumonia. Pneumonia is a disease of lungs and respiratory system. During Pneumonia alveoli becomes filled with fluid. Pneumonia can be contracted from a variety of causes which include infection from bacteria, viruses, parasites or fungi. Pneumonia also occurs from any sort of chemical or physical injuries to the lungs. It can also appear from any other medical illness such a lung cancer or alcohol abuse.

The basic symptoms associated with Pneumonia are cough, chest pain, difficult breathing and fever. It is usually diagnosed through a series of x-rays and examination of the sputum.

The treatment of Pneumonia depends on the cause, for example Bacterial Pneumonia is treated with antibiotics. Pneumonia occurs in all age groups and is a common disease. It is also one of the leading factors of death among older age groups who have been chronically ill.