2. What Causes Bronchitis?

A variety of factors can cause bronchitis by irritating the bronchial tubes, such as bacteria, viruses, and other particles. The condition can also develop due to environmental factors such as air pollution or poorly ventilated areas. The flu and colds are typical causes of bronchitis, as is repeated exposure to fumes and dust from unclean work environments. In some cases, repeated occurrences of acute bronchitis can lead to acute bronchitis.


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