Table of contents

Original research

• Original research: Timing of primary syphilis treatment and impact on the development of treponemal antibodies: a cross-sectional clinic-based study (29 March, 2021)

  Janet M Towns, David E Leslie, Ian Denham, Francesca Azzato, Theo Karapanagiotidis, Deborah A Williamson, Stephen R Graves, Christopher K Fairley, Melanie Bissessor, Eric P F Chow, Lei Zhang, Marcus Y Chen
• Original research: Drassanes Exprés: a public and confidential testing service for asymptomatic STIs with same-day result notification (12 April, 2021)

  Yannick Hoyos-Mallecot, Jorge Nestor Garcia, Elena Sulleiro, Juliana Esperalba, Paula Salmeron, Francesc Zarzuela, Albert Blanco, Maider Arando, Vicente Descalzo, Luis Lopez, Martí Vall-Mayans, María Jesús Barberá, Judit Serra-Pladevall, Montserrat LLinas, Benito Almirante, Tomas Pumarola, Mateu Espasa
• Original research: Clinical efficacy and tolerability of 1.5 g/day oral amoxicillin therapy without probenecid for the treatment of syphilis (29 March, 2021)

  Kazuhiko Ikeuchi, Kazuaki Fukushima, Masaru Tanaka, Keishiro Yajima, Akifumi Imamura
• Original research: Cross-sectional assessment of determinants of STIs among men who have sex with men and transgender women in Kigali, Rwanda (6 May, 2021)

  Jean Olivier Twahirwa Rwema, Sara Herbst, Matthew M Hamill, Benjamin Liestman, Julien Nyombayire, Carrie E Lyons, Placidie Mugwaneza, Jean Damascène Makuza, Patrick Sean Sullivan, Susan Allen, Etienne Karita, Stefan Baral
• Original research: HIV and STI positivity rates among transgender people attending two large STI clinics in the Netherlands (19 April, 2021)

  Susanne Drückler, Ceranza Daans, Elske Hoornenborg, Henry De Vries, Martin den Heijer, Maria Prins, Sophie Kuizenga Wessel, Martijn van Rooijen
• Original research: Syphilis self-testing to expand test uptake among men who have sex with men: a theoretically informed mixed methods study in Zimbabwe (29 April, 2021)

  Clarisse Sri-Pathmanathan, Definate Nhamo, Takudzwa Mamvuto, Gwendoline Chapwanya, Fern Terris-Prestholt, Imelda Mahaka, Michael Marks, Joseph D Tucker
• Original research: Systematic identification and replication of factors associated with human papillomavirus vaccine initiation among adolescents in the United States using an environment-wide association study approach (26 May, 2021)

  Tahmina Nasserie, Eran Bendavid
• Original research: Substance use treatment partially mitigates association between methamphetamine use and STI risk: findings from the NSDUH cohort (5 May, 2021)

  Jessica P Sherman, Christina Dyar, Ethan Morgan