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1). Introduction to Allergies By : Jack Smith
Up to 50 million Americans, including 2 million children, have some type of allergy. For most people, allergies are just an inconvenience. But according to the National Institute for Allergy and Infectious Disease, they are a major cause of disability in the U.S. In fact, it has been estimated that allergies account for the loss of over two million school days per year.
Article Related to: allergies, air purifiers, air cleaners, allergy relief, allergy treatments
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