+**Pneumonia** is an [Inflammation](/wiki/Inflammation) of the [Lung](/wiki/Lung), where air sacs fill with fluid or pus. This condition can make breathing difficult, often leading to a cough, fever, and chills.
+## See also
+- [Cough](/wiki/Cough)
+- [Fever](/wiki/Fever)
+- [Breathing](/wiki/Breathing)
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