Immune System Disorders, AGR-SJö
Immune system disorders include any of various failures in the body’s defense mechanisms against infectious organisms. Disorders of immunity include immune deficiency diseases, such as AIDS, that arise because of a diminution of some aspect of the immune response. Other types of immune disorders are caused when the body develops an inappropriate response to a substance—either to a normally harmless foreign substance found in the environment, in the case of allergies, or to a component of the body, in the case of autoimmune diseases.
Immune System Disorders Encyclopedia Articles By Title
agranulocytosis, acute infection characterized by severe sore throat, fever, and fatigue and associated with an......
AIDS, transmissible disease of the immune system caused by the human immunodeficiency virus (HIV). HIV is a lentivirus......
allergy, hypersensitivity reaction by the body to foreign substances (antigens) that in similar amounts and circumstances......
anaphylaxis, in immunology, a severe, immediate, potentially fatal systemic allergic reaction to contact with a......
angioedema, allergic disorder in which large, localized, painless swellings similar to hives appear under the skin.......
Arthus phenomenon, local swelling, redness, and tissue death following skin injection of soluble antigen into a......
asthma, a chronic disorder of the lungs in which inflamed airways are prone to constrict, causing episodes of wheezing,......
atopic dermatitis, a type of dermatitis...
atopy, type of hypersensitivity characterized by an immediate physiological reaction, with movement of fluid from......
autoimmune disease, any of a group of conditions or disorders that result from malfunction of the immune system,......
celiac disease, an inherited autoimmune digestive disorder in which affected individuals cannot tolerate gluten,......
drug allergy, hypersensitivity reaction to therapeutic agents that occasionally occurs on subsequent exposure to......
farmer’s lung, a pulmonary disorder that results from the development of hypersensitivity to inhaled dust from......
food allergy, immunological response to a food. Although the true prevalence of food allergy is unclear, studies......
Graves disease, endocrine disorder that is the most common cause of hyperthyroidism (excess secretion of thyroid......
Hashimoto disease, a noninfectious form of inflammation of the thyroid gland (thyroiditis). Hashimoto disease is......
hay fever, seasonally recurrent bouts of sneezing, nasal congestion, and tearing and itching of the eyes caused......
hives, a hypersensitive skin reaction characterized by the sudden appearance of very itchy, slightly raised, smooth,......
immune system disorder, any of various failures in the body’s defense mechanisms against infectious organisms.......
immunodeficiency, defect in immunity that impairs the body’s ability to resist infection. The immune system may......
leukocytosis, abnormally high number of white blood cells (leukocytes) in the blood circulation, defined as more......
leukopenia, abnormally low number of white blood cells (leukocytes) in the blood circulation, defined as less than......
multiple sclerosis (MS), progressive autoimmune disease of the central nervous system characterized by destruction......
myasthenia gravis, chronic autoimmune disorder characterized by muscle weakness and chronic fatigue that is caused......
polyglandular autoimmune syndrome, either of two familial syndromes in which affected patients have multiple endocrine......
serum sickness, an allergic reaction to medicines that contain animal proteins or to antiserum injected into an......
Sjögren syndrome, chronic inflammatory disorder characterized by severe dryness of the eyes and mouth that results......