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  2. Immune disorder - Wikipedia

    en.wikipedia.org/wiki/Immune_disorder

    An immune disorder is a dysfunction of the immune system. [1] These disorders can be characterized in several different ways: By the component (s) of the immune system affected. By whether the immune system is overactive or underactive. By whether the condition is congenital or acquired. According to the International Union of Immunological ...

  3. Autoimmune disease - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_disease

    An autoimmune disease is a condition that results from an anomalous response of the adaptive immune system, wherein it mistakenly targets and attacks healthy, functioning parts of the body as if they were foreign organisms. [1] It is estimated that there are more than 80 recognized autoimmune diseases, with recent scientific evidence suggesting ...

  4. Immunodeficiency - Wikipedia

    en.wikipedia.org/wiki/Immunodeficiency

    Immunodeficiency, also known as immunocompromisation, is a state in which the immune system 's ability to fight infectious diseases and cancer is compromised or entirely absent. Most cases are acquired ("secondary") due to extrinsic factors that affect the patient's immune system. Examples of these extrinsic factors include HIV infection and ...

  5. List of autoimmune diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_autoimmune_diseases

    List of autoimmune diseases. Dermatosis in Crohn's disease. Demyelination in MS. PAS stain of lupus nephritis. Autoimmune urticaria. Proptosis in Graves' disease. This article provides a list of autoimmune diseases. These conditions, where the body's immune system mistakenly attacks its own cells, affect a range of organs and systems within the ...

  6. Hashimoto's thyroiditis - Wikipedia

    en.wikipedia.org/wiki/Hashimoto's_thyroiditis

    Hashimoto's thyroiditis, also known as chronic lymphocytic thyroiditis and Hashimoto's disease, is an autoimmune disease in which the thyroid gland is gradually destroyed. [1][6] A slightly broader term is autoimmune thyroiditis, identical other than that it is also used to describe a similar condition without a goiter. [7][8] Early on ...

  7. X-linked severe combined immunodeficiency - Wikipedia

    en.wikipedia.org/wiki/X-linked_severe_combined...

    X-linked severe combined immunodeficiency (X-SCID) is an immunodeficiency disorder in which the body produces very few T cells and NK cells. In the absence of T cell help, B cells become defective. [1] It is an X-linked recessive inheritance trait, stemming from a mutated (abnormal) version of the IL2RG gene located on the X-chromosome.

  8. Primary immunodeficiency - Wikipedia

    en.wikipedia.org/wiki/Primary_immunodeficiency

    Primary immunodeficiencies are disorders in which part of the body's immune system is missing or does not function normally. [1] To be considered a primary immunodeficiency (PID), the immune deficiency must be inborn, not caused by secondary factors such as other disease, drug treatment, or environmental exposure to toxins.

  9. Autoinflammatory diseases - Wikipedia

    en.wikipedia.org/wiki/Autoinflammatory_diseases

    Autoinflammatory diseases (AIDs) are a group of rare disorders caused by dysfunction of the innate immune system. These responses are characterized by periodic or chronic systemic inflammation, usually without the involvement of adaptive immunity. Autoinflammatory diseases are a separate class from autoimmune diseases; however, both are ...

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