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- Dictionaryhypersensitivity/ˌhʌɪpəˌsɛnsɪˈtɪvɪti/
noun
- 1. extreme physical sensitivity to particular substances or conditions: "hypersensitivity to common chemicals"
- 2. a tendency to be easily hurt, worried, or offended: "hypersensitivity to criticism"
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Hypersensitivity (also called hypersensitivity reaction or intolerance) is an abnormal physiological condition in which there is an undesirable and adverse immune response to an antigen. [1] [2] It is an abnormality in the immune system that causes immune diseases including allergies and autoimmunity.
Nov 27, 2023 · A hypersensitivity reaction is an extreme or unnecessary immune response that the body has to an antigen. There are four different types of hypersensitivity reactions....
Jul 24, 2022 · Hypersensitivity Definition. Hypersensitivity is the exaggerated immune response to protect the human from foreign bodies known as antigens. When the antigen is detected by the immune system, a hyperimmune response starts and the hypersensitivity reaction starts. This reaction is not always desirable as it may harm humans.
Apr 9, 2024 · hypersensitive, also known as hypersensitive reaction or intolerance, is an abnormal physiological condition in which the body’s immune system reacts negatively to an antigen. It reflects an immune system malfunction that can lead to immunological disorders such as allergies and autoimmunity.
Mar 12, 2022 · Hypersensitivity is increased reactivity or increased sensitivity by the animal body to an antigen to which it has been previously exposed. The term is often used as a synonym for allergy, which describes a state of altered reactivity to an antigen.
HYPERSENSITIVITY definition: 1. a condition in which the immune system reacts in an extreme way to a substance in the body: 2…. Learn more.
HYPERSENSITIVITY meaning: 1. a condition in which the immune system reacts in an extreme way to a substance in the body: 2…. Learn more.
Hypersensitivity is the increased reactivity or increased sensitivity by the animal body to an antigen to which it has been previously exposed. The term is often used as a synonym for allergy, which describes a state of altered reactivity to an antigen.
A hypersensitivity reaction is an overreaction of your immune system to something that would not usually cause an immune response. This leads to allergy symptoms. There are different types of hypersensitivity reactions. Type I reactions usually develop within a few minutes of exposure to an allergen but can occasionally develop over a few hours.
Allergy is one of a class of immune system responses that are termed hypersensitivity reactions. These are harmful immune responses that produce tissue injury and may cause serious disease. Hypersensitivity reactions were classified into four types by Coombs and Gell (Fig. 12.2).
