How does the definition of allergy encompass systemic reactions?

A milk allergy is an immune system disorder. Milk and milk products, including yogurt, cottage cheese, and hard cheeses. Lactose is a sugar that is naturally ... ... Allergy and Infectious Diseases (NIAID) (http://www.niaid.nih.gov/) PURPOSE ... definition. NIAID considers such research in epidemiology, outcomes ... Hives usually start as an itchy patch of skin that turns into swollen red bumps—they can sometimes be mistaken for bug bites. They are also known as nettle rash ... Using a definition of probable food allergy as reporting allergic symptoms within 2 hours of ingestion of a specific food plus the presence of allergic ... A food allergy happens when your immune system overreacts to a harmless food protein—an allergen. In the U.S., the nine most common food allergens are milk, egg ... The simplest definition of an allergen is a substance that causes an allergic reaction, broadly speaking, a hypersensitivity immune response, but usually refers ... What is the difference between an “Observed” and “Historical” Adverse Drug Reaction? When you enter the allergies/adverse reactions into CPRS, there is a choice ... NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine. Apr 11, 2025 ... 1 Definition. Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. 4.4.1.701. a medical condition that causes you to react badly or feel ill when you eat or touch a particular substance