[Karl Landsteiner].

Karl Landsteiner received the Nobel Prize for Medicine in 1930. He worked in Vienna, The Hague and New York, making fundamental contributions in the field of immune hematology (blood groups and Rhesus factor), syphilis (visualising spirochetes in the dark field) and poliomyelitis (viral genesis). In particular, his findings in the general field of serology and immunology (haptens, specificity of antigens) have not lost any of their significance and are valid to this day.