Patients with transplanted organs
prone to host versus rejection
since their own system tends to
attack grafted organ because of
of the grafted tissue
foreign matter. In the and
treatment of this problem
patients are given or other
immuno supressants.
have an immuno suppressant and
so they reduce aggression of the
immune against the graft.

The action however is also
important for the individual.
immune system defends the
against invasion and infection
pathogenic agents(virus, bacteria,
toxins) being fundamental for
the of modified cells that
proliferate and cause cancer.
receiving immuno suppressants
like are thus under
increased of infectious and
neoplastic .