lunes, 25 de mayo de 2015

Environmental Allergies

Environmental Allergies

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05/20/2015 03:24 PM EDT

Source: National Institute of Allergy and Infectious Diseases - NIH
Related MedlinePlus Page: Allergy

An allergic reaction is a specific response of the body’s immune system to a normally harmless substance called an allergen. A variety of environmental allergens, such as pollen and animal dander, can trigger allergic reactions in the nose (allergic rhinitis, or hay fever) and in the lung (asthma). Not all reasons for susceptibility to environmental allergies are understood, although a family history of allergies is an important risk factor. NIAID supports and conducts research aimed at understanding how allergic rhinitis and asthma develop and identifying new strategies to diagnose, treat, and prevent environmental allergies.

Understanding Environmental Allergies

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