PATHOLOGY

Detailed explanation-1: -Memory T and B lymphocytes have an essential role in the immunity against microbial pathogens but are also involved in autoimmunity and maternal-fetal tolerance. Furthermore, the evidence of immunological memory has been established for NK cells.

Detailed explanation-2: -Specifically, cells of our adaptive immune system, such as T cells and B cells, can mount specificity for the antigen, and these adaptive cells provide memory that lasts up to several decades in the body.

Detailed explanation-3: -Adaptive immune responses depend on the ability to recognize and eliminate recurrent pathogens, resulting in the generation of memory lymphocytes. The capacity of memory T cells to rapidly mobilize and initiate a potent recall response enhances protective immunity against previously encountered pathogens.