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Acute bronchitis is often caused by the same [[virus]]es that cause [[common cold|cold]]s. It usually starts as a [[sore throat]], runny nose or sinus infection, then spreads to the airways. It can cause a lingering dry cough, but it usually goes away on its own.

Acute bronchitis is often caused by the same [[virus]]es that cause [[common cold|cold]]s. It usually starts as a [[sore throat]], runny nose or sinus infection, then spreads to the airways. It can cause a lingering dry cough, but it usually goes away on its own.

Chronic bronchitis is one type of COPD (chronic obstructive pulmonary disease). The inflamed bronchi produce a lot of mucus. This leads to cough and difficulty getting air in and out of the lungs. [[Cigarette smoking]] is the most common cause. [[Breathing]] in other fumes and dusts over a long period of time may also cause chronic bronchitis. Treatment will help alleviate symptoms, but chronic bronchitis is a long-term condition that keeps coming back or never goes away completely.<ref>http://www.nlm.nih.gov/medlineplus/bronchitis.html</ref>

Chronic bronchitis is one type of [[COPD]] (chronic obstructive pulmonary disease). The inflamed bronchi produce a lot of mucus. This leads to cough and difficulty getting air in and out of the lungs. [[Cigarette smoking]] is the most common cause. [[Breathing]] in other fumes and dusts over a long period of time may also cause chronic bronchitis. Treatment will help alleviate symptoms, but chronic bronchitis is a long-term condition that keeps coming back or never goes away completely.<ref>http://www.nlm.nih.gov/medlineplus/bronchitis.html</ref>

== See also ==

== See also ==