Bronchitis and bronchiolitis are both respiratory conditions that affect the airways. Both conditions involve inflammation of the bronchi, which are the tubes that carry air from the nose and mouth to the lungs. However, there are some key differences between the two conditions.
Bronchitis
Bronchitis is an inflammation of the lining of the bronchi, which leads to narrowing of the airways. This reduces the amount of air that can get into the lungs, resulting in a feeling of breathlessness. Bronchitis is usually caused by a virus, although it can also be caused by bacterial infection or inhaling irritants such as smoke or dust. Symptoms of bronchitis include a persistent cough, shortness of breath, wheezing, chest tightness, and fatigue.
Bronchiolitis
Bronchiolitis is an inflammation of the small airways in the lungs, known as bronchioles. It is caused by a virus, most commonly respiratory syncytial virus (RSV). Symptoms of bronchiolitis include a persistent cough, wheezing, rapid breathing, and difficulty feeding. Infants and young children are most at risk of developing bronchiolitis.
Conclusion
Although both bronchitis and bronchiolitis are conditions that involve inflammation of the airways, there are some important differences between the two conditions. Bronchitis is usually caused by a virus, bacterial infection, or exposure to irritants and affects adults and children. Bronchiolitis is mainly caused by the respiratory syncytial virus (RSV) and mainly affects infants and young children.