The stimulation of B cells to produce antibodies is performed with the assistance of T cells. This will be discussed in more detail later. Purposes of the antibodies Antibodies don't harm antigens but they perform a variety of other functions that could lead to the destruction of the antigen. Antibodies inactivate viruses by masking their attachment sites and thus prevent them from attaching to host cells. Click here to see this .
Antibodies neutralize bacterial toxins by covering their active sites.
Click here to see this . Summary Let's review. Humoral immunity is used against bacteria, bacterial toxins, and viruses in the body's fluids. Cell-mediated Immunity Features T cells do not recognize any antigen that is not a protein. The protein must be attached to the surface of a cell such as a phagocyte.