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Pneumonia
Pneumonia is a lung infection usually caused by a virus or bacterium. The lungs fill up with pus, which makes it very difficult to breathe.

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Pneumonia

Pneumonia is an infection that causes the lungs to fill up with fluid. It is contagious and often spread through coughing, sneezing and even breathing. Symptoms can vary from mild to very severe, and usually include the following: Cough Fever Chills Trouble breathing
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