Coloured SEM of household dust (allergens)

Coloured SEM of household dust (allergens)

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Credit: CUSTOM MEDICAL STOCK PHOTO/SCIENCE PHOTO LIBRARY

Caption: Household dust. Coloured scanning electron micro- graph (SEM) of a sample of household dust. Dust contains an assortment of substances which can cause an allergic reaction. These allergens may include synthetic and woollen fibres, cat fur, skin scales, and fungal particles. An allergy is a hypersensitive response to substances that, in most people, are harmless. Allergens may come into contact with the skin, respiratory airways, or surface of the eye. The substances seen here may also be found airborne in different quantities. Some allergens, for example pollen grains, occur in dust seasonally.

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Keywords: allergen, allergic reaction causes, allergy, cause, domestic items, dust, house dust, household, household dust, household goods

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