“Thus, it may be expected that in the case of a transfusion from a person of one group to a person of another group, the serum of the recipient will agglutinate the corpuscles of the donor.”

About Karl Landsteiner

Scientist • Austrian-American

Karl Landsteiner was an Austrian-American biologist, physician, and immunologist, awarded the Nobel Prize in Physiology or Medicine in 1930. He is renowned for discovering the main human blood groups—A, B, and O—in...