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So one hears, as if in a speaking-tube from a long distance, the words that Schaudinn and Hoffmann, on April 19, 1905, discovered the germ that causes syphilis, not realizing that the fact contained in those few brief words can alter the undercurrent of human history, and may, within the lives of our children and our children's children, remake the destiny of man on the earth.
The commonest and most fatal of all forms of general diseases of the nervous system are those which are due to the later extensions of general infections. First and foremost stands syphilis, due to the invasion of the blood by a clearly defined spirillum, the Treponema pallida of Schaudinn.
#The Virus of Syphilis.# The cause of syphilis, whether acquired or inherited, is the organism, described by Schaudinn and Hoffman, in 1905, under the name of spirochæta pallida or spironema pallidum. It is a delicate, thread-like spirilla, in length averaging from 8 to 10
Ehrlich conceived the whole make-up and properties of salvarsan when most of us find it a hardship to pronounce its name. Schaudinn saw with the ordinary lenses of the microscope in the living, moving germ, what dozens can scarcely see today with the germ glued to the spot and with all the aid of stains and dark-field apparatus.
The germ of syphilis, discovered by Schaudinn and Hoffmann in 1905, is an extremely minute spiral or corkscrew-shaped filament, visible under only the highest powers of the microscope, which increase the area of the object looked at hundreds of thousands of times, and sometimes more than a million of times.
Amoebae were demonstrated in one form of dysentery, and in other tropical diseases protozoa were discovered, so that we were really prepared for the announcement in 1905, by Schaudinn, of the discovery of a protozoan parasite in syphilis.
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