Which age group is more susceptible to bronchiolitis?

The age group that is more susceptible to bronchiolitis is children under 2 years. Bronchiolitis is primarily caused by viral infections, with respiratory syncytial virus (RSV) being the most common culprit. Infants and young children have smaller airways, which makes them more vulnerable to inflammation and obstruction caused by these infections. Their immune systems are still developing, further increasing their risk for respiratory illnesses.

In contrast, the other age groups listed, such as adults, teens, and young adults, tend to have more developed respiratory systems and stronger immune defenses, which makes them less susceptible to bronchiolitis. Thus, children under 2 years are the most affected demographic, leading to a higher incidence of this condition in that age range.