And they can basically release these very powerful proteins, proteolytic proteins that essentially drill holes inside those infected cells, killing those cells. And these powerful proteins are known as perforance. So basically the T lymphocy, with the help of the helper T cell differentiates into these soldiers cytotoxic T cells that contain these receptors. And when these receptors locate the specific type of antigen found on the infected cell, they bind, they form a complex. And once they form a complex, they begin to release these powerful proteins that drill holes in these infected cells and kill off those infected cells. And they can also release chemicals, these green dots that essentially call upon macrophages.