W. Grant Hague, The Eugenic Marriage, Volume 3…
“ The theory of the vaccine treatment of disease is that if you infuse into the blood the [Pg 416] products of the germs of certain diseases, the individual in whose blood the vaccine has been put, will wholly resist that particular disease, or if he acquires it, it will be in a mild and more modified form. If a family for a number of generations has had various members die of tuberculosis, the blood stream of the family will have become so impregnated with the toxins, or poisons, of the disease, that, in time, a certain immunity will have been established. ”
