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Author Spotlight: Advancing Syphilis Research — Innovations in Treponema pallidum Cultivation and Genetic Engineering
Published on: January 24, 2025
Estimating the Sensitivity of Nontreponemal and Treponemal Antibody Tests in Primary Syphilis
Stephanie F Sweitzer1, Jane S Chen1, Mitch M Matoga2
1From the Division of Infectious Diseases, Department of Internal Medicine, University of North Carolina, Chapel Hill, NC.
Abstract:
Among patients with primary syphilis, sensitivity of the toluidine red unheated serum test was 55% (6/11) compared with darkfield microscopy and 60% (9/15) compared with Treponema pallidum polymerase chain reaction. Sensitivity of rapid plasma reagin was 78% (38/49) and 93% (43/46), respectively. Treponema pallidum particle agglutination had a sensitivity of 95% (41/43) compared with darkfield microscopy and 96% (43/45) compared with polymerase chain reaction.

