allergy and immunology definition
U.S. National Library of Medicine(3.00 / 1 vote)Rate this definition: Allergy and Immunology. A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder. the study of the reaction of tissues of the immune system of the body to antigenic stimulation. Medtalk The study of the body's immune system. See Clinical lab immunology, Clinical & lab immunology, Neuroendocrinoimmunology, Neuroimmunology, Psychoneuroimmunology. Here are definitions of some of the words frequently encountered in literature on allergy and asthma. Allergy. Allergies are inappropriate or exaggerated reactions of the immune system to substances that, in the majority of people, cause no symptoms. Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. Allergy & Immunology Sections. When you have allergies, your immune system makes antibodies that identify a particular allergen as harmful, even though it isn't. When you come into contact with the allergen, your immune system's reaction can inflame your skin, sinuses, airways or digestive system. The severity of allergies varies from person to person and can range from minor irritation to anaphylaxis — a potentially life-threatening emergency. Allergy-Immunology Glossary. Here are definitions of some of the words frequently encountered in literature on allergy and asthma. Allergies are inappropriate or exaggerated reactions of the immune system to substances that, in the majority of people, cause no symptoms. Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or to a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies. An allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance called an allergen. Allergens can include aeroallergens such as dust mite, mold, and tree weed and grass pollen, as well as food allergens such as milk, egg, soy, wheat, nut or fish proteins. If you have an allergy, your immune system views the allergen as an invader and a chain reaction is initiated. White blood cells of the immune system produce IgE antibodies. These antibodies attach themselves to special cells called mast cells, causing a release of potent chemicals such as histamine. Allergy and Immunology is a medical specialty on the diagnosis, treatment, and management of diseases and medical conditions involving the immune system.The field of Allergy and Immunology covers a wide variety of conditions, from allergies brought on by environmental factors, food and drug, etc. to autoimmune diseases and AIDS. the branch of biomedical science encompassing the study of the structure and function of the immune system (basic immunology); immunization, organ transplantation, blood banking, and immunopathology (clinical immunology); laboratory testing of cellular and humoral immune function (laboratory immunology); and the use of antigen--antibody reactions in ...
A medical specialty on the diagnosis, treatment, and management of diseases and medical conditions involving the immune system.