Allergy (redirected from induced allergy)

allergy /al·ler·gy/ (al´er-je) a hypersensitive state acquired through exposure to a particular allergen, reexposure bringing to light an altered capacity to react. See hypersensitivity. aller´gic

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atopic allergy  atopy.

bacterial allergy  specific hypersensitivity to a particular bacterial antigen.

bronchial allergy  atopic asthma; see asthma.

cold allergy  a condition manifested by local and systemic reactions, mediated by histamine, which is released from mast cells and basophils as a result of exposure to cold.

contact allergy  see under dermatitis .

delayed allergy  see under hypersensitivity.

drug allergy  an allergic reaction occurring as the result of unusual sensitivity to a drug.

food allergy , gastrointestinal allergy allergy produced by ingested antigens in food, usually manifested by a skin reaction.

hereditary allergy  atopy.

immediate allergy  see under hypersensitivity.

latent allergy  that not manifested by symptoms but which may be detected by tests.

physical allergy  a condition in which the patient is sensitive to the effects of physical agents, such as heat, cold, light, etc.

pollen allergy  hay fever.

polyvalent allergy  see pathergy (2).

spontaneous allergy  atopy.

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al·ler·gy (lr-j)

n.

An abnormally high acquired sensitivity to certain substances, such as drugs, pollens, or microorganisms, that may include such symptoms as sneezing, itching, and skin rashes.

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Allergy

Altered body reaction, usually hypersensitivity, as a response to exposure to a specific substance.

Mentioned in: Serum Sickness

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allergy (al´urjē),

n a hypersensitive reaction to an allergen; an antigen-antibody reaction is manifested in several forms–anaphylaxis, asthma, hay fever, urticaria, angioedema, dermatitis, and stomatitis.

Manifestations of allergies.

allergy, cross-reactive,

n a condition in which a patient allergic to one medication will experience an allergic reaction to all other medications and their derivatives (i.e., cross-sensitivity between penicillin derivatives, cephalosporins and carbapenems). See also resistance, cross.

allergy, “spontaneous” clinical,

n See atopy.

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allergy

an altered reactivity following second or subsequent exposure to antigen (allergen). See also hypersensitivity, allergic.

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atopic allergy

hereditary predisposition to develop certain allergies. See atopy.

bacterial allergy

a specific hypersensitivity to a particular bacterial antigen, e.g. Mycobacterium tuberculosis; it is dependent on previous infection with the specific organism.

bronchial allergy

asthma.

cold allergy

a condition manifested by local and systemic reactions, mediated by histamine, which is released from mast cells and basophils as a result of exposure to cold.

delayed allergy

see delayed hypersensitivity.

drug allergy

see drug allergy.

drying-off allergy

see milk allergy (below).

food allergy

called also gastrointestinal allergy; see food hypersensitivity.

gastrointestinal allergy

see food allergy (above).

hereditary allergy

an allergy with a hereditary predisposition. The tendency to develop some forms of allergy is inherited, but the specific clinical form is not. IgE, formerly called reagin or reaginic antibody, may be involved. See also atopy.

induced allergy

allergy resulting from the injection of an antigen, contact with an antigen, or infection with a microorganism, as contrasted with hereditary allergy.

inhaled allergy

see atopy.

milk allergy

a hypersensitivity to the milk protein, a-casein. Signs, varying from urticaria to anaphylaxis, have occurred in Jersey cows when milk escapes from the udder into the bloodstream during the drying off period.

physical allergy

a condition in which physical agents, such as heat, cold or light, trigger an allergic response.