5 Questions
What is the characteristic feature of Type III hypersensitivity reactions?
Immune complex deposition and tissue damage
Which disorder is an example of Type II hypersensitivity?
Transfusion reactions
What is the main effector cytokine secreted by TH1 cells in T cell-mediated hypersensitivity reactions?
Interferon-gamma (IFN-γ)
Which type of hypersensitivity involves antibodies stimulating thyroid epithelial cells to secrete thyroid hormones?
Type II hypersensitivity
What is the primary characteristic of delayed-type hypersensitivity (DTH) reaction?
Detectable cutaneous reaction within 24 to 48 hours
This quiz covers the causes of primary and secondary immunodeficiency, as well as hypersensitivity reactions in the immune system. It explores how disorders of the immune system can be classified into different categories based on their mechanisms.
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