“THE NECESSITY FOR RE-VACCINATION.--There is abundant reason for believing that a person who has been successfully vaccinated is absolutely protected against smallpox during a period varying from six to twelve months, probably the latter. After this time his immunity may or may not continue indefinitely.... “In the absence of means of determining accurately the length of perfect resistance it is best to re-vaccinate once a year.” Now here we plainly see that this Government Expert after long experience in the fertile field of the Philippines admits clearly and positively the very limited protective power of vaccination, so that it is practically evanescent in duration, or extends over a few months only, or at most can not, or should not, be relied on for sure and safe protection longer than from six months to one year! And for this reason Dr. Olesen carefully advises that “_it is best to re-vaccinate once a year_.” Now, surely, this modest position of Dr. Olesen as to the short duration of protection and the necessity of re-vaccination _once a year_ is very similar to the position of the anti-vaccinators, but very different from the positive claim of Dr. Jenner on which vaccination started and for which he got his big prize or “graft” of thirty thousand pounds for the grossly false claim of his alleged “discovery” that _one vaccination_ would give _absolute protection_ from smallpox _for life_! THE DANGEROUS “VACCINATION CREED” OF THE CHICAGO BOARD OF HEALTH EXPLAINED AND CONDEMNED I will now give another great authority on vaccination, viz., the famous and dangerous “Vaccination Creed” of the Chicago Board of Health, issued in 1906, and still in use, which limits the protective power of vaccination still more than Dr. Olesen and makes it absolutely dependent on multiple or doubly repeated vaccinations to the point of “saturation,” as follows: “After many years of experience with smallpox and vaccination, the Chicago Department of Health hereby declares: “First: That true vaccination--repeated until it no longer takes--ALWAYS prevents smallpox. NOTHING ELSE DOES.”