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What is pneumonia?

Pneumonia is an inflammation of the lung tissue. It is usually caused by an infection with bacteria or viruses. The symptoms of pneumonia include a cough that produces lots of mucus; fever; tiredness, and difficulty breathing.

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About this article

Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.6 out of 5
Votes: 448 (Click smiley face below to rate)
Category: Bronchitis


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