And these macrophages basically come next to this infected cell and once the cell dies off the macrophage essentially engulfs that cell and breaks it down into different types of things. Now, two other types of cells that T lymphocytes can differentiate into our memory T cells that function in the same way as memory B cells and we can also form something called suppressor cells or suppressor T cells. And these cells are involved in using a negative feedback mechanism to essentially regulate and tone down our functionality of the immune system. So our cell mediated immunity is very effective against cells that have been infected by these different types of pathogens. So these are the major differences between the antibody mediated immunity and the cell mediated immunity. But these two different divisions must actually work together to carry out that same function.