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Chronic bronchitis is an inflammation of the bronchi, the main air passages in the lungs, which persists for a long period or repeatedly recurs. The condition is characterized by excessive bronchial mucus and a productive cough that produces sputum for 3 months or more in at least 2 consecutive years, without any other disease that could account for this symptom.
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If you cough up mucus and feel short of breath for at least three months each year, two or more years in a row, you have chronic bronchitis.
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