Did you know? There are actually two types of bronchitis—not one. Acute and chronic bronchitis are two forms of the infection that causes inflammatory bronchial tubes, but how are they different? Our AFC Urgent Care Sevierville team provides some helpful answers below, so read on! What Is Acute Bronchitis? Both acute and chronic bronchitis occur when the bronchioles (air-carrying tubes in the lungs) are inflamed and make too much mucus.Acute bronchitis, or short-term ...