Plasma donor centers exist in many rural areas, but they almost always cities and university towns is. To prior to deadly viruses and illnesses that blood screening, in the past few years, many street people and homeless individuals plasma known donation. This is the most in these times for the risk of diseases such as AIDS and hepatitis. It is not identical to the plasma and blood donation. Is plasma, substances, blood hormones, vitamins, blood cells, platelets, body to carry the liquid portion. Its medical use is innumerable. Plasma and used as an anticoagulant in haemophilia in many areas of medical research and development is very important.
