@serenesurface-- They're not the same although the symptoms are very similar. Actually both bronchitis and asthma involve inflammation of the bronchi tubes. But asthma causes difficulty breathing, wheezing, etc. Bronchitis can cause some of these issues too if it gets very bad. In fact, if bronchitis isn't treated soon enough, it can lead to asthma in addition to pneumonia as the article author mentioned.
The other difference is the cause. This kind of bronchitis is caused by bacteria. Asthma is usually caused by an allergen.