Bronchitis is an inflammation of the lining of your bronchial tubes,which carry air to and from your lungs. Usually the cold or flu completes its course in few weeks and you are again healthy and without any symptoms but when the infection spreads to bronchial tubes it causes swelling and inflammation there producing more mucus and timid cough. Along with that it would also produce tightness in the chest with short breathing accompanied by sound while breathing (wheezing). Low grade fever can also be seen.
a)Acute bronchitis and b)chronic bronchitis
Acute bronchitis: commonly follows a cold or viral infection,such as the flu.It consist of cough with mucus,chest discomfort or soreness, fever and sometimes shortness of breath. Acute bronchitis usually lasts a few days or weeks.
Chronic bronchitis: is a serious,ongoing illness characterized by a persistent,mucus-producing cough that lasts longer than 3 months out of the year for more than 2 year.
If chronic bronchitis occurs with emphysema, it may become chronic obstructive pulmonary disease (COPD).
How does it spread
There are several things which can increase the risk of bronchitis:
The major complication of bronchitis are: