Karl Landsteiner Karl Landsteiner Karl Landsteiner, , (14 June 1868 – 26 June 1943) was an Austrian biologist, physician, and immunologist. He distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the blood, and identified, with Alexander S. Wiener, the Rhesus factor, in 1937, thus enabling physicians to transfuse blood without endangering the patient's life. With Constantin Levaditi and Erwin Popper, he discovered the polio virus in 1909. He received the Aronson Prize in 1926. In 1930, he received the Nobel Prize in Physiology or
Nobel Prize effect it hard for a scientist to work on small problems after winning the prize. During a speech at a seminar, Hamming described a scene at the Nobel awards ceremony as follows: The Nobel Prize effect is also described as a consequence of public perception of the Nobel laureate, magnified by the worldwide exposure the winner experiences. One example is for the Nobel laureate to be treated with reverence due to perception that the laureate has authoritative knowledge about any subject outside the field in which he or she won the prize. Nobel Laureate Klaus von Klitzing describes the effect as