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However, if we included transmission from sexual practices that followed one another in the same sexual episode (e.g. saliva contamination of the penis from oral sex transmitting chlamydia to the rectum by anal sex), we significantly improved the calibration of multisite infection rates substantially.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our modelling study suggests that transmission routes other than just oral and anal sex are necessary to explain the high rate of<jats:italic>Chlamydia trachomatis<\/jats:italic>infection at more than one site.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s12916-020-01796-3","type":"journal-article","created":{"date-parts":[[2020,11,17]],"date-time":"2020-11-17T02:02:25Z","timestamp":1605578545000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Chlamydia trachomatis transmission between the oropharynx, urethra and anorectum in men who have sex with men: a mathematical model"],"prefix":"10.1186","volume":"18","author":[{"given":"Xianglong","family":"Xu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric P. 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