Asthma attacks are most commonly triggered by allergies to airborne particles of house-dust mites, grass or tree pollens, fungal spores and skin flakes from furry animals such as cats and dogs.
Uhlaselo lombefu ludle ngokususwa kukwaliwa kwezinto ezihamba nomoya ngumzimba womntu ezinjengothuli olusekhaya, umungu wengca okanye wemithi, umngundo nemvuthuluka yolusu lwezilwanyana ezinoboya ezifana neekati nezinja.