CHAPTER VI
SUMMARY AND CONCLUSION
As the diverse aspects of the problem which has been discussed in the preceding pages are somewhat numerous and complex, owing to the vast mass of irrelevant but confusing matter with which it has been encumbered at every step of its progress for nearly a century, a brief summary of the main points here referred to, and a statement of their bearing on the essential problem, will now be given.
I have first shown the nature of the tests which seemed to the early enquirers to establish the protective influence of vaccination, and have given the facts which the two greatest living specialists on the subject—Professor Crookshank and Dr. Creighton—consider to prove the fallacy or insufficiency of all the tests which were applied. This is followed by a statement of the abundant evidence which in the first ten years of the century already showed that vaccination had no protective power (pp. 10–12). But the heads of the medical profession had accepted the operation as of proved value, and the legislature, on their recommendation, had voted its discoverer £30,000 of public money, and had besides, in 1808, endowed a National Vaccine Establishment with about £3,000 a year. Reputations and vested interests were henceforth at stake, and those who adduced evidence of the failure or the dangers of vaccination were treated as fanatics, and have been so treated by the medical and
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