Popis: |
In956-1957. jfche Public Health Service conducted an evaluation of serologic tests for syphilis known as the Serologic Evaluation and Research Assembly (1), or SERA. In 1958, the 25th year follow-up examination was performed on participants in the Public Health Sendee study (2) of untreated syphilis conducted in Mc°.n County, Ajabamg,. The Reiter protein antigen tesTwaTmtroduced in the United States in time for inclusion in both of these studies thus permitting a rapid evaluation of this testing procedure. |