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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which is true about type II hypersensitivity reaction?
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The correct answer is  Type II or Cytotoxic Hypersensitivity depends on the abnormal production of IgG or IgM directed against tissue antigens or a normal reaction to foreign antigens expressed on host cells. There are three main mechanisms of injury in Type II reactions:* Activation of complement followed by complement mediated lysis or phagocytosis and removal by leukocytes* Antibody dependent cellular cytotoxicity* Inactivation of a biologically active molecule