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The most recent one—the Wassermann test—is not absolute by any means.

The theory that marriages should be made in the laboratory; the Wassermann test for love.

There were no symptoms of any kind and the Wassermann test was negative.

The prevailing idea is to demand a negative Wassermann test.

The Wassermann test must not be relied upon for diagnosis in the early stage, as it does not appear until the disease has become generalised and the secondary manifestations are about to begin.