(1)Measles viruses enter.
(2)Macrophage Invasion eats and defeats a virus ¨ reach a helper T-lymph cell about invasion of enemy.
(3)Helper T cell order B cell to make an antibody and other T-lymph cells to repulse viruses.
(4)B cell makes in large quantities of antibody and emits.
(5)Antibody attaches for a virus (relation between a key and a keyhole).
(6) Killer T cell clean up a virus which was obsessed by the antibody and T cell which was invaded by the virus.
(7)Memory T cell memorizes a virus.
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(8)Invasion of the virus after the second time
¨Our body repulse before the onset of a disease by discovering immediately and making an antibody cling quickly. --- Immunity was made.
