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August 1925

Serum Diagnosis of Syphilis by Precipitation.

Arch NeurPsych. 1925;14(2):286-287. doi:10.1001/archneurpsyc.1925.02200140149011

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During the past nineteen years numerous attempts have been made to evolve a precipitation test for syphilis as a substitute for the complement-fixation test. At the present time those of Sachs and Georgi, Meinicke, Vernes, Dreyer and Ward and Kahn are attracting most attention, particularly that of Kahn in this country.

In this monograph Kahn has briefly reviewed a portion of the very large amount of literature on the subject, and has described his own work with considerable detail, particularly the test which he has evolved for the serum diagnosis of syphilis. The literature bearing on comparative studies with his test and the Wassermann test is reviewed, with the general conclusion that the former possesses the sensitiveness and specificity of the latter while being technically simpler and more economical.

It is still too early, however, to pronounce definitely on the comparative merits of the two tests, as so much depends

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