Inflammation: Whether infectious or environmental factors, bronchitis is caused by acute inflammation of the airways that deliver air to your lungs.
Answered 1/27/2018
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Two types....: There are 2 types of bronchitis: acute and chronic. Acute bronchitis is due to an infection in the airways, usually either bacterial or viral. Chronic bronchitis is a form of copd, chronic obstructive pulmonary disease, and is usually due to smoking.
Answered 1/27/2018
5.8k views
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