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We assessed an implementation program in Zhuhai, China, which focused on the secondary distribution of HIV\/syphilis self-test kits among men who have sex with men (MSM) via social media.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Men aged \u226516 years, born biologically male, and ever had sex with another man were recruited as indexes. Banner ads on a social media platform invited the participants to apply for up to 5 self-test kits every 3 months. Index men paid a deposit of US$15\/kit refundable upon submitting a photograph of a completed test result via an online submission system. They were informed that they could distribute the kits to others (referred to as \u201calters\u201d).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>A total of 371 unique index men applied for 1150 kits (mean age, 28.7 [standard deviation, 6.9] years), of which 1141 test results were returned (99%). Among them, 1099 were valid test results; 810 (74%) were from 331 unique index men, and 289 tests (26%) were from 281 unique alters. Compared to index men, a higher proportion of alters were naive HIV testers (40% vs 21%; P &amp;lt; .001). The total HIV self-test reactivity rate was 3%, with alters having a significantly higher rate than indexes (5% vs 2%; P = .008). A total of 21 people (3%) had a reactive syphilis test result.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Integrating social media with the secondary distribution of self-test kits may hold promise to increase HIV\/syphilis testing coverage and case identification among MSM.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/cid\/ciaa825","type":"journal-article","created":{"date-parts":[[2020,6,17]],"date-time":"2020-06-17T11:20:01Z","timestamp":1592392801000},"page":"e2251-e2257","source":"Crossref","is-referenced-by-count":59,"title":["Social Media\u2013Based Secondary Distribution of Human Immunodeficiency Virus\/Syphilis Self-testing Among Chinese Men Who Have Sex with Men"],"prefix":"10.1093","volume":"73","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0415-5467","authenticated-orcid":false,"given":"Dan","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom"},{"name":"Insititute of Global Health and Sexually Transmitted Infection Research, Southern Medical University, Guangzhou, China"},{"name":"Dermatology Hospital, Southern Medical University, Guangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Zhou","sequence":"additional","affiliation":[{"name":"Zhuhai Center for Diseases Control and Prevention, Zhuhai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nancy","family":"Yang","sequence":"additional","affiliation":[{"name":"University of Minnesota Twin Cities, Minneapolis, Minnesota, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shanzi","family":"Huang","sequence":"additional","affiliation":[{"name":"Zhuhai Center for Diseases Control and Prevention, Zhuhai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"He","sequence":"additional","affiliation":[{"name":"Zhuhai Xutong Voluntary Services Center, Zhuhai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph","family":"Tucker","sequence":"additional","affiliation":[{"name":"Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom"},{"name":"University of North Carolina Project\u2013China, Guangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaofeng","family":"Li","sequence":"additional","affiliation":[{"name":"Zhuhai Center for Diseases Control and Prevention, Zhuhai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kumi M","family":"Smith","sequence":"additional","affiliation":[{"name":"Division of Epidemiology and Community Health, University of Minnesota Twin Cities, Minneapolis, Minnesota, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tiarney","family":"Ritchwood","sequence":"additional","affiliation":[{"name":"Family Medicine and Community Health, Duke University, Durham, North Carolina, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaohui","family":"Jiang","sequence":"additional","affiliation":[{"name":"Health Commission of Zhuhai, Zhuhai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuan","family":"Liu","sequence":"additional","affiliation":[{"name":"University of North Carolina Project\u2013China, Guangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yehua","family":"Wang","sequence":"additional","affiliation":[{"name":"University of North Carolina Project\u2013China, Guangzhou, 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