{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T15:38:08Z","timestamp":1787240288592,"version":"build-2736575974"},"reference-count":32,"publisher":"American Society for Microbiology","issue":"11","license":[{"start":{"date-parts":[[2019,11,1]],"date-time":"2019-11-01T00:00:00Z","timestamp":1572566400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Clin Microbiol"],"published-print":{"date-parts":[[2019,11]]},"abstract":"<jats:p>Discordant syphilis test results, with a reactive nontreponemal test and nonreactive treponemal test are usually considered biological false-positive test results (BFPs), which can be attributed to other conditions. Syphilis surveillance laws mandate laboratory reporting of reactive syphilis tests, which include many BFPs. We describe the frequency of BFPs, titer distributions, and titer increases from reported test results in Florida and New York City (NYC).<\/jats:p>","DOI":"10.1128\/jcm.00898-19","type":"journal-article","created":{"date-parts":[[2019,8,26]],"date-time":"2019-08-26T05:42:41Z","timestamp":1566798161000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":28,"title":["Frequency and Characteristics of Biological False-Positive Test Results for Syphilis Reported in Florida and New York City, USA, 2013 to 2017"],"prefix":"10.1128","volume":"57","author":[{"given":"James","family":"Matthias","sequence":"first","affiliation":[{"name":"Centers for Disease Control and Prevention, Atlanta, Georgia, USA"},{"name":"Florida Department of Health, Tallahassee, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen J.","family":"Klingler","sequence":"additional","affiliation":[{"name":"New York City Department of Health and Mental Hygiene, New York, New York, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia A.","family":"Schillinger","sequence":"additional","affiliation":[{"name":"Centers for Disease Control and Prevention, Atlanta, Georgia, USA"},{"name":"New York City Department of Health and Mental Hygiene, New York, New York, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gayle","family":"Keller","sequence":"additional","affiliation":[{"name":"Florida Department of Health, Tallahassee, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Craig","family":"Wilson","sequence":"additional","affiliation":[{"name":"Florida Department of Health, Tallahassee, Florida, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas A.","family":"Peterman","sequence":"additional","affiliation":[{"name":"Centers for Disease Control and Prevention, Atlanta, Georgia, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","unstructured":"CDC. 2018. 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