The B-lymphocytes produce a custom antibody to go with the antigen from the specific germ. Each antibody your body produces is only effective against its particular antigen. The antibodies will detect the antigens, or identifiers, brought to the lymph node by the macrophages, and the B-lymphocytes will divide and produce a large number of antibodies to get rid of the antigens. Meanwhile, the T-lymphocytes locate germ-infected cells. Some of the T-lymphocytes will release a chemical that will eradicate the infected cells, and other T-lymphocyte cells will release a chemical that acts as a homing signal for the other white blood cells.