Specifically, it releases into Lucan two. And what that chemical does is it moves on to B lymphocytes and T lymphocytes and it forces these two cells to essentially differentiate into their specialized form. So B lymphocytes produce memory B cells as well as plasma cells, while these T lymphocytes produce the memory T cells as well as our cytotoxic T cells. So the cytotoxic T cells now contain the specific antibody on the membrane that can bind to this specific antigen. And so, when the cytotoxic cell actually comes in close proximity to this type of bacteria that carries that same antigen, this antibody will be able to bind onto that bacteria. And once they are bound, the cytotoxic cell will begin to release these powerful proteins that will drill holes in those bacterial cells, killing off those bacterial cells.