Pneumonia overview: Difference between revisions
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==Overview== | ==Overview== | ||
'''Pneumonia''' is an illness of the [[lung]]s and [[respiratory system]] in which the [[Pulmonary alveolus|alveoli]] (microscopic air-filled sacs of the lung responsible for absorbing [[oxygen]] from the atmosphere become inflamed and flooded with fluid. Pneumonia can result from a variety of causes, including [[infection]] with [[bacteria]], [[virus]]es, [[fungus|fungi]], or [[parasite]]s, and chemical or physical injury to the lungs. | '''Pneumonia''' is an illness of the [[lung]]s and [[respiratory system]] in which the [[Pulmonary alveolus|alveoli]] (microscopic air-filled sacs of the lung responsible for absorbing [[oxygen]] from the atmosphere become inflamed and flooded with fluid. Pneumonia can result from a variety of causes, including [[infection]] with [[bacteria]], [[virus]]es, [[fungus|fungi]], or [[parasite]]s, and chemical or physical injury to the lungs. | ||
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==References== | ==References== | ||
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Revision as of 13:52, 10 May 2012
Overview
Pneumonia is an illness of the lungs and respiratory system in which the alveoli (microscopic air-filled sacs of the lung responsible for absorbing oxygen from the atmosphere become inflamed and flooded with fluid. Pneumonia can result from a variety of causes, including infection with bacteria, viruses, fungi, or parasites, and chemical or physical injury to the lungs.
Typical symptoms associated with pneumonia include cough, chest pain, fever, and difficulty in breathing.Diagnostic tools include x-rays and examination of the sputum. Treatment depends on the cause of pneumonia; bacterial pneumonia is treated with antibiotics.
Pneumonia is a common illness which occurs in all age groups, and is a leading cause of death among the elderly and people who are chronically and terminally ill. Vaccines to prevent certain types of pneumonia are available. The prognosis depends on the type of pneumonia, the appropriate treatment, any complications, and the person's underlying health.