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T cell

white blood cell critical to the immune response. Among these are CD4+ T cells and CD8+ T cells.

T lymphocyte proliferation assay

a test used to measure the memory of T cells to antigens.


the quantity of a substance required to produce a reaction with a given volume of another substance, or the amount of one substance required to correspond with a given amount of another substance.

transmission-blocking vaccines

vaccines that prevent mosquitoes from becoming infected, even after feeding on an infected person.