Is the definition of allergy important for distinguishing between clinically relevant allergies and sensitization?

Apr 18, 2023 ... Health Canada information for consumers on food allergens, allergen labelling and research. Provides access to fact sheets with information ... Allergy definition. An allergy is a disorder caused by an abnormal reaction to a harmless substance called an allergen. The word allergen literally means ... Definition. Allergic reactions to foods; The most common symptom is hives; Questions about food allergies; Oral Allergy Syndrome is also covered. AAAAI experts explain an allergic reaction occurs when the immune system overreacts to a harmless substance called an allergen. Allergy is described as an exaggerated response from the body's immune system to otherwise inert substances present in the environment. In 2008, the ADA was changed to include more people in the definition of “disabled.” Conditions that only show symptoms at certain times are now included. There are no laws or regulations requiring those advisory warnings and no standards that define what they mean. If you have questions about what foods are safe ... Allergies to tree nuts and peanuts are a common cause of severe allergic reactions. Find out more here about managing nut allergies. Apr 21, 2025 ... 1. altered bodily reactivity (such as hypersensitivity) to an antigen in response to a first exposure; a bee venom; allergy so severe that a second sting may ... Allergen: Any antigen that causes allergic reactions such as pollens, mites, foods,etc. Antibody: People produce these molecules in response to antigen ...