Bronchitis is an infection of the lining of your bronchial tubes, which lift air to and from your lungs. People who have bronchitis frequently cough up thickened mucus, which can be discolored. Bronchitis may additionally be both acute or chronic. Often growing from a bloodless or different respiratory infection, acute bronchitis is very common. Chronic bronchitis, a greater serious condition, is a consistent infection or irritation of the lining of the bronchial tubes, regularly due to smoking.
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