Bronchitis is a condition characterized by the infection or inflammation of the air passages towards the lungs. These air passages are referred to as the bronchi. In children, acute bronchitis often occurs in relation to a viral infection in the respiratory tract.
Acute bronchitis may also be caused by inhaling polluted air, fumes, and dust. In addition, cigarette smoking can also cause bronchitis in toddlers, especially if you or other people smoke cigarettes near your child.