Which of the following is a common allergen that can trigger asthma?

While pollen is indeed a known allergen that can trigger asthma symptoms, dust mites, pet dander, and mold spores are also common allergens. Each of these allergens can provoke an allergic response in sensitive individuals, leading to inflammation and bronchoconstriction characteristic of asthma attacks.

Dust mites are microscopic organisms that thrive in household dust and feed on skin flakes. They are a prominent trigger, especially in those with perennial asthma due to their year-round presence.

Pet dander consists of tiny flakes and proteins shed by animals, which can also lead to asthma exacerbations in sensitive individuals. This allergen is particularly relevant for those with furry pets, as it can be present in the home environment.

Mold spores, which can proliferate in damp areas, release microscopic particles into the air. For individuals with asthma, inhaling these spores can trigger their symptoms, especially in humid conditions.

Recognizing pollen as a trigger reflects an understanding of seasonal allergies, as it can indeed exacerbate asthma in certain times of the year, particularly during specific flowering periods. However, considering the prevalence of triggers and their potential to elicit asthma symptoms, one might argue that dust mites, pet dander, and mold spores have a more consistent impact throughout the year, unlike pollen,