Pneumonia is a disease of the lungs where the pulmonary alveoli (alveoli) responsible for absorbing oxygen from the atmosphere become inflamed and filled with fluid. Pneumonia can be caused by several causes, including infection by bacteria, viruses, fungi, or parasites. Pneumonia can also be caused by pain of chemicals or physical injury to the lungs, or as a result of other diseases, such as lung cancer or excessive alcohol drinking.
Symptoms associated with pneumonia include cough, chest pain, fever, and difficulty breathing. Diagnostic tools including X-rays. Treatment depends on the cause pneumonia, inflammation of the lungs caused by bacteria treated with antibiotics.
Pneumonia is a common disease, which occurs in all age groups, and is the top ranked causes of death among the elderly and people with chronic illness. Vaccines to prevent certain types of pneumonia can be obtained. Individual prognosis depends on the type of pneumonia, appropriate treatment, complications, and health.
One case of pneumonia that have a high mortality rate at present is a case of pneumonia caused by bird flu.