Bronchial asthma is the most common chronic respiratory disease worldwide. In Germany, more than 5% of the population is affected. There are different manifestations of asthma, which is associated with airway inflammation and bronchial hyperresponsiveness.
In the classical subdivision, one speaks of allergic (extrinsic) and non-allergic (intrinsic) asthma. This distinction is not always easy and there is overlap between the two forms.
Today, the distinction according to the underlying immune response has become accepted:
- Type 2 High Asthma with allergen-specific immune response (Type 2).
- Type-2-low asthma or non-T2 asthma without such type-2 inflammation.
Independently of the above system, other forms are named. Such as effort asthma or eosinophilic asthma.