AN EXPERIMENTAL VERIFICATION OF THE SIGNIFICANCE OF THE DELAYED NEGATIVE WASSERMANN REACTION
Open Access
- 1 September 1921
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Dermatology and Syphilology
- Vol. 4 (3) , 363-365
- https://doi.org/10.1001/archderm.1921.02350220072008
Abstract
Several years ago, Olson1and more recently, McConnell2have called attention to a phenomenon known as the "delayed negative" Wassermann reaction. In essence, it has to do with the time at which the reaction is read. If read in about thirty minutes, it is positive; but at the end of an hour or two hours, as the case may be, it is negative. They are inclined to the opinion that such a reaction should be regarded as at least a partial one. McConnell has shown that it occurs in about 1 per cent, of his cases, which he has divided into three groups: the first group comprises known syphilitic patients, most of whom had received treatment; the second, those who probably had syphilis, and the third, those presenting no evidence of syphilis. As is to be expected, the greatest percentage of these reactions is to be found inKeywords
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