Memory cells are a type of lymphocyte that remains in the body after an initial infection to respond more rapidly and effectively upon subsequent exposures to the same antigen. They play a crucial role in long-term immunity.
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Memory cells are derived from both B cells and T cells following an immune response.
They can persist for years or even a lifetime, providing long-term immunity.
Upon re-exposure to the same pathogen, memory cells quickly differentiate into effector cells to eliminate the threat.
There are two main types of memory T cells: central memory T cells (TCM) and effector memory T cells (TEM).
Vaccinations work by stimulating the creation of memory cells without causing disease.
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Related terms
B Lymphocytes (B Cells): A type of white blood cell that produces antibodies against antigens.
T Lymphocytes (T Cells): A type of white blood cell involved in cellular immunity, including helper and cytotoxic T cell functions.