hypersensitivity aquired through exposure to a particular substance (allergen).
an acquired, abnormal immune response to a substance that can cause a broad range of inflammatory reactions. An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of allergy may include sneezing, itching, and skin rashes. a physiological reaction caused when the immune system mistakenly identifies a normally harmless substance as damaging to the body. an exaggerated or inappropriate immune response initiated by exposures to antigens such as mold spores, pollen, or certain drugs and foods Allergies are inappropriate or exaggerated reactions of the immune system to substances that, in the majority of people, cause no symptoms. ... a condition in which the body is not able to tolerate eating certain foods, or exposure to certain animals, plants, or other substances. Some people are allergic to certain metals and materials. If you are aware of any such allergy, advise and discuss the options available, with your piercer. a negative reaction to a substance that in most people causes no reaction Drug, food or something breathed in which the body sees as harmful and tries to fight off. A condition in which the body has an exaggerated response to a substance (eg food or drug). a misguided reaction by the immune system to harmless foreign substances. Proteins are made of a chain of dehydrated amino acids. When enzymes cut proteins into pieces they add water back to the site at which they cut, called enzymatic hydrolysis, for proteins it is called proteolysis. ... An inappropriate and harmful response of the immune system to normally harmless substances. a bodily reaction to an irritant. Skin allergies can be exacerbated by solutions put on the kin and my metals in some cases. Sensitivity to a substance, accompanied by sneezing, itching, watery eyes, difficulty breathing or rashes. An immediate or delayed immune reaction caused by exposure to an antigen (allergen). Sarne as hypersensitivity (see also "Sensitivity", Understanding Toxic Substances). An allergy is a reaction to a substance that occurs through a change in the immune system caused by the production of antibodies, and is usually experienced by only a small number of people exposed to a substance ... Abnormal sensitivity reaction of the body to substances that are usually harmless. IgE antibody response to allergens such as insect venom, dust mites, pollen, pet dander, drugs or some foods. hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity Allergy is a disorder of the immune system that is often called atopy. Allergic reactions occur to environmental substances known as allergens; these reactions are acquired, predictable and rapid. ... A condition of hypersensitivity to a substance (an allergen) considered harmless to most people. Exposure (consumption, inhalation, physical contact, etc) to such substances causes the body to undergo a reaction, often resulting in symptoms such as difficulty breathing and/or swellings/rashes of ...
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