Blood type Summary

Blood Type Blood has two main components: serum and cells. In 1900 Karl Landsteiner, a physician at the University of Vienna, Austria, noted that the sera of some individuals caused the red cells of o... Read more

Blood Types Until 1900, no one understood why blood could not be transfused from one person to another without occasional difficulties. Viennese pathologist Karl Landsteiner was the first to discover ... Read more

Blood Groups Genetics Blood groups are inherited. Most familiar are the blood types of the A-B-O group and Rh types, but several others have been found that display the antigen-antibody reaction. In t... Read more

Blood Groups The development of blood transfusion, a potentially life-saving technique, was hampered by a serious problem: many times the patient would suffer an often fatal "transfusion reaction," ap... Read more