The first Nobel prize awarded to Emil von Behring in 1901 for his work on

The first Nobel prize awarded to Emil von Behring in 1901 for his work on "Serum therapy for Diphtheria". Emil von Behring and co-workers injected diphtheria toxins into different organisms such as horses and pigs. After these animals developed immunity, they isolate antitoxins (now known as antibodies) from their serum. When injected into a different animal, these antitoxins protect the animal against diphtheria.