In December 1901, the first Nobel Prizes were awarded, and the recipient of the initial prize in Medicine and Physiology was the German physician and scientist Emil von Behring “for his work on serum therapy, especially its application against diphtheria, by which he has opened a new road in the domain of medical science and thereby placed in the hands of the physician a victorious weapon against illness and deaths” [1, 2, 3, 4]
“During the years 1888-1890 E. Roux and A. Yersin, working at the Pasteur Institute in Paris, had shown that filtrates of diphtheria cultures which contained no bacilli, contained a substance which they called a toxin, that produced, when injected into animals, all the symptoms of diphtheria. In 1890, L. Brieger and C. Fraenkel prepared, from cultures of diphtheria bacilli, a toxic substance, which they called toxalbumin, which when injected in suitable doses into guinea-pigs, immunized these animals to diphtheria.”
“In 1890 Behring and S. Kitasato published their discovery that graduated doses of sterilised broth cultures of diphtheria or of tetanus bacilli caused the animals to produce, in their blood, substances which could neutralize the toxins which these bacilli produced (antitoxins). They also showed that the antitoxins thus produced by one animal could immunize another animal and that it could cure an animal actually showing symptoms of diphtheria.”
“Earlier in 1898, Behring and F. Wernicke had found that immunity to diphtheria could be produced by the injection into animals of diphtheria toxin neutralized by diphtheria antitoxin.” and so was born toxin-antitoxin injections. [4]