By Tetyana Obukhanych, PhD,
International Medical Council on Vaccination,
July 10, 2014.
The cure for tetanus, a life-threatening and often deadly disease, has been sought from the very inception of the modern field of Immunology. The original horse anti-serum treatment of tetanus was developed in the late 19th century and introduced into clinical practice at the time when a bio-statistical concept of a randomized placebo-controlled trial (RCT) did not yet exist. The therapy was infamous for generating a serious adverse reaction called serum sickness attributed to the intolerance of humans to horse-derived serum. To make this tetanus therapy usable, it was imperative to substitute the animal origin of anti-serum with the human origin. But injecting a lethal toxin into human volunteers as substitutes for horses would have been unthinkable.