Emil von Behring was one of the founders of the science of immunology. His discovery of the diphtheria and tetanus antitoxins paved the way for the prevention of these diseases through the use of immunization. It also opened the door for the specific treatment of such diseases with the injection of immune serum. Behring's stature as a seminal figure in modern medicine was recognized in 1901, when he received the first Nobel Prize in physiology or medicine.

Emil Adolf von Behring was born in Hansdorf, West Prussia (now Germany). He was the eldest son of August Georg Behring, a schoolmaster with thirteen children, and his second wife, Augustine Zech Behring. Although his father planned for him to become a minister, young Behring had an inclination toward medicine. The family's meager circumstances seemed to put this goal out of his reach, however. Then one of Behring's teachers, recognizing great promise...