Immune System
The Immune System In our blood, there are red blood cells, white blood cells and plasma. The white blood cells are what make up our immune systems. ... There are also other cells in our immune system, such as killer cells (see transplanted organs9, helper cells, which help the other cells in our immune system to do their jobs, and suppresser cells, which prevent the immune system from over-reacting. ... To overcome the problem of transplants being rejected, which happens because the immune system thinks it is an intruder and tries to destroy it, scientists are finding ways to fool the immune system. ... Until that time the patient has to be kept away from germs as the drugs make the immune system fight diseases less efficiently. The more the patient’s and the transplant’s genetics are alike, the less likely it is for the immune system to reject it.