How does the definition of allergy apply to reactions to metals (e.g., nickel)?

FOOD ALLERGY SAFETY. (a) IN GENERAL.—Section 201(qq)(1) of the Federal Food ... modification of the definition of ''major food allergen'' included in ... Allergy drops work by introducing a small amount of an allergen, such as pollen or dust mites, into the body by placing the drops under the tongue daily. Over ... Aug 9, 2016 ... This document presents fundamental and broad allergy concepts to strengthen the understanding by different health professionals worldwide. Definition. Angioedema is swelling that is similar to hives, but the swelling ... Allergy, hypersensitivity, and anaphylaxis. In: Walls RM, Hockberger ... ALLERGY meaning: a medical condition that causes someone to become sick after eating, touching, or breathing something that is harmless to most people often ... ... Allergy and Infectious Diseases (NIAID) (http://www.niaid.nih.gov/) PURPOSE ... definition. NIAID considers such research in epidemiology, outcomes ... Allergy is described as an exaggerated response from the body's immune system to otherwise inert substances present in the environment. Clinical criteria were proposed that emphasized the need for heightened suspicion of anaphylaxis in patients with a previous history of allergic reactions to a ... Dec 10, 2018 ... An allergy is the body's erroneous reaction to a foreign substance that is completely harmless for all intents and purposes. Aug 9, 2016 ... PDF | Background: Allergy and hypersensitivity can affect people of any age and manifest with problems in a range of organ systems.