What is pneumonia?
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Pneumonia is an inflammation of the lung tissue. It is usually due to infection.
Pneumonia tends to be more serious than bronchitis. (Bronchitis is an inflammation or infection of the large airways - the bronchi.) Sometimes bronchitis and pneumonia occur together which is called broncho-pneumonia.
Are there different types of pneumonia?
Pneumonia is commonly caused by an infection with a bacterium or virus. Other germs such as fungi, yeasts, or protozoa sometimes cause pneumonia.
Rarely, non-infective pneumonia is caused by inhaling poisons or chemicals.
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