Page 105 - The Miracle in the Immune System

FORCES MULTIPLY
Once activated, helper T
cells begin to multiply.
They then warn the killer
T cells and B cells,
which are few in number
and sensitive to the
enemy virus, to multiply.
When the number of B
cells increases, the
helper T cells send them
a type of signal to initiate
the manufacturing of
antibodies.

DEFEATING THE INFEC-
TION
At this point, some viruses
have successfully penetrat-
ed the cells. The only place
where viruses can multiply
is in the body cells. With the
chemical materials they
secrete, killer T cells cause
the death of these cells by
drilling through their mem-
branes, and removing the
elements inside. Thus they
prevent the virus in the cell
from reproducing. By hold-
ing directly on to the sur-
face of the virus, antibodies
inactivate them and prevent
them from invading other
AFTER THE WAR cells. In conclusion, cells
After the battle is won, and the that are infected are
disease has been eradicated, destroyed with the aid of
suppressor T cells stop the chemical substances, which
whole offensive system. were prepared prior to the
Memory T and B cells remain attack.
in the blood and lymphatic
system in order to become
immediately activated in case
a virus of the same type is met.