{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T12:19:30Z","timestamp":1781180370006,"version":"3.54.1"},"reference-count":47,"publisher":"BMJ","issue":"11","license":[{"start":{"date-parts":[[2024,11,27]],"date-time":"2024-11-27T00:00:00Z","timestamp":1732665600000},"content-version":"unspecified","delay-in-days":26,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004252","name":"Qatar University","doi-asserted-by":"publisher","award":["QUCG-CAS-23\/24-114"],"award-info":[{"award-number":["QUCG-CAS-23\/24-114"]}],"id":[{"id":"10.13039\/501100004252","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ministry of Public Health and Hamad Medical Corporation","award":["N\/A"],"award-info":[{"award-number":["N\/A"]}]},{"name":"Qatar Research, Development, and Innovation Council","award":["ARG01-0522-230273"],"award-info":[{"award-number":["ARG01-0522-230273"]}]},{"DOI":"10.13039\/100019460","name":"Weill Cornell Medicine - Qatar","doi-asserted-by":"publisher","award":["Biomedical Research Program"],"award-info":[{"award-number":["Biomedical Research Program"]}],"id":[{"id":"10.13039\/100019460","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100019460","name":"Weill Cornell Medicine - Qatar","doi-asserted-by":"publisher","award":["Biostatistics, Epidemiology, and Biomathematics Re"],"award-info":[{"award-number":["Biostatistics, Epidemiology, and Biomathematics Re"]}],"id":[{"id":"10.13039\/100019460","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2024,10,17]]},"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Scant data are available on syphilis infection within migrant populations worldwide and in the population of the Middle East and North Africa region. This study investigated the prevalence of both lifetime and recent syphilis infections among migrant craft and manual workers (MCMWs) in Qatar, a diverse demographic representing 60% of the country\u2019s population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Sera specimens collected during a nationwide cross-sectional survey of SARS-CoV-2 seroprevalence among the MCMW population, conducted between 26 July and 9 September 2020, were analysed.\n                      <jats:italic>Treponema pallidum<\/jats:italic>\n                      antibodies were detected using the Mindray CL-900i Chemiluminescence Immunoassay Analyzer. To differentiate recent infections, rapid plasma reagin (RPR) testing was performed, with an RPR titre of \u22651:8 considered indicative of recent infection. Logistic regression analyses were employed to identify factors associated with lifetime syphilis infection. Sampling weights were incorporated into all statistical analyses to obtain population-level estimates.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      <jats:italic>T. pallidum<\/jats:italic>\n                      antibodies were identified in 38 of the 2528 tested sera specimens. Prevalence of lifetime infection was estimated at 1.3% (95% CI 0.9% to 1.8%). Among the 38 treponemal-positive specimens, 15 were reactive by RPR, with three having titres \u22651:8, indicating recent infection. Prevalence of recent infection was estimated at 0.09% (95% CI 0.01 to 0.3%). Among treponemal-positive MCMWs, the estimated proportion with recent infection was 8.1% (95% CI: 1.7 to 21.4%). The adjusted OR for lifetime infection increased with age, reaching 8.68 (95% CI 2.58 to 29.23) among those aged \u226560 years compared with those \u226429 years of age. Differences in prevalence were observed by nationality and occupation, but no differences were found by educational attainment or geographic location.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Syphilis prevalence among MCMWs in Qatar is consistent with global levels, highlighting a disease burden with implications for health and social well-being. These findings underscore the need for programmes addressing both sexually transmitted infections and the broader sexual health needs of this population.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2023-083810","type":"journal-article","created":{"date-parts":[[2024,11,28]],"date-time":"2024-11-28T04:30:42Z","timestamp":1732768242000},"page":"e083810","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Prevalence of syphilis infection among migrant workers in Qatar: a nationwide cross-sectional survey"],"prefix":"10.1136","volume":"14","author":[{"given":"Gheyath K","family":"Nasrallah","sequence":"first","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"},{"name":"Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8756-6968","authenticated-orcid":false,"given":"Hiam","family":"Chemaitelly","sequence":"additional","affiliation":[{"name":"Infectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Cornell University, Doha, Qatar"},{"name":"Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, New York, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0102-8155","authenticated-orcid":false,"given":"Ahmed Ismail Ahmed","family":"Ismail","sequence":"additional","affiliation":[{"name":"Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Duaa W","family":"Al-Sadeq","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fathima H","family":"Amanullah","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"},{"name":"Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jawaher A","family":"Al-Emadi","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hadiya M","family":"Khalid","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"},{"name":"Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Parveen B","family":"Nizamuddin","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"},{"name":"Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahim","family":"Al-Shaar","sequence":"additional","affiliation":[{"name":"Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ibrahim W","family":"Karimeh","sequence":"additional","affiliation":[{"name":"Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mutaz M","family":"Ali","sequence":"additional","affiliation":[{"name":"Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2512-6657","authenticated-orcid":false,"given":"Houssein H","family":"Ayoub","sequence":"additional","affiliation":[{"name":"Mathematics Program, Department of Mathematics, Statistics, and Physics, College of Arts and Sciences, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sami","family":"Abdeen","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashraf","family":"Abdelkarim","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Faisal","family":"Daraan","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed Ibrahim Hashim","family":"Elhaj Ismail","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nahid","family":"Mostafa","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed","family":"Sahl","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"},{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinan","family":"Suliman","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9343-3400","authenticated-orcid":false,"given":"Elias","family":"Tayar","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, 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Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdulsalam Ali A H","family":"Al-Qahtani","sequence":"additional","affiliation":[{"name":"Qatar Red Crescent Society, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monther H A","family":"Al-Shedifat","sequence":"additional","affiliation":[{"name":"Qatar Red Crescent Society, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anas","family":"Ansari","sequence":"additional","affiliation":[{"name":"Qatar Red Crescent Society, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmad Ali","family":"Ataalla","sequence":"additional","affiliation":[{"name":"Qatar Red Crescent Society, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandeep","family":"Chougule","sequence":"additional","affiliation":[{"name":"Qatar Red Crescent Society, Doha, 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Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asmaa A","family":"Al Thani","sequence":"additional","affiliation":[{"name":"Biomedical Research Center, Qatar University, Doha, Qatar"},{"name":"Department of Biomedical Science, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Odette","family":"Chaghoury","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9158-5395","authenticated-orcid":false,"given":"Mohamed Ghaith","family":"Al-Kuwari","sequence":"additional","affiliation":[{"name":"Primary Health Care Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elmoubasher","family":"Farag","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"Bertollini","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hamad Eid","family":"Al Romaihi","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdullatif","family":"Al Khal","sequence":"additional","affiliation":[{"name":"Hamad Medical Corporation, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed H","family":"Al-Thani","sequence":"additional","affiliation":[{"name":"Ministry of Public Health Qatar, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0790-0506","authenticated-orcid":false,"given":"Laith J","family":"Abu-Raddad","sequence":"additional","affiliation":[{"name":"Infectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Cornell University, Doha, Qatar"},{"name":"Department of Population Health Sciences, Weill Cornell Medicine, Cornell University, New York, New York, USA"},{"name":"Department of Public Health, College of Health Sciences, QU Health, Qatar University, Doha, Qatar"},{"name":"College of Health and Life Sciences, Hamad bin Khalifa University, Doha, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2024,11,27]]},"reference":[{"key":"2025121512533678000_14.11.e083810.1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(16)32411-4"},{"key":"2025121512533678000_14.11.e083810.2","unstructured":"World Health Organization . Syphilis: Key facts, Available: https:\/\/www.who.int\/news-room\/fact-sheets\/detail\/syphilis"},{"key":"2025121512533678000_14.11.e083810.3","doi-asserted-by":"publisher","DOI":"10.1172\/JCI57173"},{"key":"2025121512533678000_14.11.e083810.4","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0211720","article-title":"Global burden of maternal and congenital syphilis and associated adverse birth outcomes-Estimates for 2016 and progress since 2012","volume":"14","author":"Korenromp","year":"2019","journal-title":"PLoS One"},{"key":"2025121512533678000_14.11.e083810.5","doi-asserted-by":"publisher","DOI":"10.1053\/j.semperi.2018.02.005"},{"key":"2025121512533678000_14.11.e083810.6","doi-asserted-by":"publisher","DOI":"10.2471\/BLT.18.228486"},{"key":"2025121512533678000_14.11.e083810.7","unstructured":"World Health Organization . 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Characterizing the HIV\/AIDS epidemic in the Middle East and North Africa: time for strategic action. Middle East and North Africa HIV\/AIDS epidemiology synthesis project. Washington, DC: World Bank\/UNAIDS\/WHO Publication, 2010. 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