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Bronchitis
Bronchitis is swelling of the bronchial tubes. It can be acute (usually caused by a respiratory infection, such as a cold) or chronic (often associated with the adverse effects of smoking).

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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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