Investigations in the Serodiagnosis of Syphilis.

The need for a rapid and accurate test for the serodiagnosis of syphilis has led to the following investigations. The S.S. test, as described by Seiler, has been used at this clinic for 1,326 cases, which have been cross-checked by other serological reactions performed by outside laboratories. In all cases in which differences were found, blood investigations were repeated. Many sera were duplicated under different numbers. The antigen used in the S.S. test is that described by Rappaport and Eichhorn. All the tests carried out at this clinic were made in rotation and no effort was made to select cases.