immediate hypersensitivity

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immediate hypersensitivity

[i′mē·dē·ət ‚hī·pər·sen·sə′tiv·əd·ē]
(immunology)
A type of hypersensitivity in which the response rapidly occurs following exposure of a sensitized individual to the antigen.
References in periodicals archive ?
While testing the reaction to household allergens, moderate positive immediate hypersensitivity reaction was caused by the dog fur in 66.
As was shown earlier in our studies, immediate hypersensitivity reaction prevails in HIV infection (14, 15,16).
Objective clinical and laboratory studies of immediate hypersensitivity reactions to food in asthmatic children.
Rare cases of urticaria, angioedema, rash, bronchospasm, anaphylaxis, and oropharyngeal edema may occur as immediate hypersensitivity reactions after administration of ipratropium bromide.

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