Horatio Yed wrote:
If you have to take anti rejection drugs for organ transplants because your body would see it as a foreign entity if you didn't how are we able to survive with other peoples blood in us and it not cause a problem?
Blood consists of three cellular components, red blood cells, white blood cells and platelets. When you donate blood it is processed and for transfusion the white cells are removed as these are the only ‘complete cells’ with DNA. Red Blood cells (Plasma) do not contain DNA so they can carry more oxygen. Whole blood is rarely transfused. If it is, the body’s immune system will detect the foreign DNA and attack the white cells.