Allergens are small-mol-wt proteins capable of inducing IgE antibody and triggering an allergic response. In our outdoor and indoor milieu, these allergenic proteins (along with a larger number of nonallergenic proteins) are carried on vectors, such as pollen grains or house dust particles, which may become airborne. Contact with these environmental allergens causes not only the immunologic sensitization required for the development of atopic disease, but also the provocation of acute symptoms and the maintenance of chronic symptoms. Although there are many allergenic proteins on a variety of vectors in the environment, an understanding of a few classes of the major outdoor allergens that cause seasonal symptoms and indoor allergens responsible for perennial symptoms furnishes the physician with practical tools for the care of allergic individuals.
KeywordsPollen Season Grass Pollen House Dust Mite Major Allergen Bermuda Grass
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