{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T13:15:07Z","timestamp":1791810907838,"version":"4.3.4"},"reference-count":119,"publisher":"American Society for Microbiology","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clin. Vaccine Immunol."],"published-print":{"date-parts":[[2015,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Complexities in the diagnosis of syphilis continue to challenge clinicians. While direct tests (e.g., microscopy or PCR) are helpful in early syphilis, the mainstay of diagnosis remains serologic tests. The traditional algorithm using a nontreponemal test (NTT) followed by a treponemal test (TT) remains the standard in many parts of the world. More recently, the ability to automate the TT has led to the increasingly widespread use of reverse algorithms using treponemal enzyme immunoassays (EIAs). Rapid, point-of-care TTs are in widespread use in developing countries because of low cost, ease of use, and reasonable performance. However, none of the current diagnostic algorithms are able to distinguish current from previously treated infections. In addition, the reversal of traditional syphilis algorithms has led to uncertainty in the clinical management of patients. The interpretation of syphilis tests is further complicated by the lack of a reliable gold standard for syphilis diagnostics, and the newer tests can result in false-positive reactions similar to those seen with older tests. Little progress has been made in the area of serologic diagnostics for congenital syphilis, which requires assessment of maternal treatment and serologic response as well as clinical and laboratory investigation of the neonate for appropriate management. The diagnosis of neurosyphilis continues to require the collection of cerebrospinal fluid for a combination of NTT and TT, and, while newer treponemal EIAs look promising, more studies are needed to confirm their utility. This article reviews current tests and discusses current controversies in syphilis diagnosis, with a focus on serologic tests.<\/jats:p>","DOI":"10.1128\/cvi.00681-14","type":"journal-article","created":{"date-parts":[[2014,11,27]],"date-time":"2014-11-27T01:07:30Z","timestamp":1417050450000},"page":"137-147","source":"Crossref","is-referenced-by-count":165,"title":["Recent Trends in the Serologic Diagnosis of Syphilis"],"prefix":"10.1128","volume":"22","author":[{"given":"Muhammad G.","family":"Morshed","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ameeta E.","family":"Singh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","published-online":{"date-parts":[[2014,11,26]]},"reference":[{"key":"key20180919073755_B1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1128\/CMR.8.1.1","article-title":"Laboratory diagnosis and interpretation of tests for syphilis","volume":"8","year":"1995","journal-title":"Clin Microbiol Rev"},{"key":"key20180919073755_B2","doi-asserted-by":"publisher","first-page":"700","DOI":"10.1086\/655832","article-title":"Novel Treponema pallidum serologic tests: a paradigm shift in syphilis screening for the 21st century","volume":"51","year":"2010","journal-title":"Clin Infect Dis"},{"key":"key20180919073755_B3","doi-asserted-by":"publisher","first-page":"251","DOI":"10.1136\/sextrans-2012-050622","article-title":"Sensitivity, specificity, and likelihood ratios of PCR in the diagnosis of syphilis: a systematic review and meta-analysis","volume":"89","year":"2013","journal-title":"Sex Transm Infect"},{"key":"key20180919073755_B4","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1128\/MMBR.57.3.750-779.1993","article-title":"Polypeptides of Treponema pallidum: progress toward understanding their structural, functional, and immunologic roles. 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