Bronchitis Contagious Period

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Chronic bronchitis is an inflammation of the main airways in the lungs that continues for a long period or keeps coming back.

Alternative Names

Bronchitis - chronic

Causes, incidence, and risk factors

Cigarette smoking is the main cause of chronic bronchitis. The more a person smokes, the more likely it becomes that the person will get bronchitis and that the bronchitis will be severe.

Secondhand smoke may also cause chronic bronchitis. Air...

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