How did Behring's experiments lead to serum therapy?
My approach was always rooted in meticulous observation and experimentation, eschewing speculative theories. I systematically investigated the effects of diphtheria toxin on animals, noting how their bodies developed a resistance. The crucial step was to extract this protective element from their blood. Through repeated inoculations and careful collection of serum, I was able to concentrate these antitoxins. 'Die praktische Ziele der Blutserumtherapie' outlines this process. It was a matter of isolating the active principle, demonstrating its neutralizing capacity against the 'Gift,' and proving its efficacy in treatment. Without experiment, the efficacy of any therapy remains unsubstantiated.
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