Describe how and why both types of adaptive immunity can cause problems with organ transplantation

The two types of adaptive immune are humoral immunity and cell-mediated immunity, the Rejection during organ transplantation is caused by the immune system response to alloantigens on the graft. From species to species and person to person, proteins are different and perceived as a foreign intruding object by the body. It is essentially an immunological response, where the antibodies produced by B and T lymphocytes attack the graft or organ.

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