Karl Landsteiner blood group A nor of blood group B. Therefore, the immune systems of persons with blood group A, B or AB do not refuse the donation. Further, because persons with blood group AB do not form antibodies against either the antigens of blood group A or B, they can accept blood from persons with these blood groups, besides from persons with blood group O-negative. In today's blood transfusions only concentrates of red blood cells without serum are transmitted, which is of great importance in surgical practice. In 1930 Landsteiner was awarded the Nobel Prize in Physiology or Medicine in recognition
2001 Nobel Peace Prize 2001 Nobel Peace Prize The 2001 Nobel Peace Prize was awarded to the United Nations and Kofi Annan for "their work for a better organized and more peaceful world". In 2001, its centennial year, the Nobel Committee decided that the Peace Prize was to be divided between the United Nations (UN) and Kofi Annan. Annan was awarded the Peace Prize for having revitalized the UN and for having given priority to human rights. The Nobel Committee also recognized his commitment to the struggle to contain the spreading of the HIV virus in Africa and his declared opposition to international terrorism.