Hello! Chronic bronchitis is not the same thing as acute bronchitis. Cigarette smoking is the main cause of chronic bronchitis and it is an ongoing, serious disease and almost 90% of acute bronchitis cases are caused by viruses. In some cases chronic bronchitis can lead to asthma. Acute bronchitis often follows a respiratory infection with feeling of sore chest and coughing. Most cases of acute bronchitis disappear after ten days and chronic bronchitis needs serious treatment.
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