“…The magnitude of risk for HIV and STI acquisition among women in sub-Saharan Africa (SSA) is unparalleled (World Health Organization 2011, Magadi 2013). In some parts of SSA, young women have an HIV prevalence eight times higher than men, and the gap in infection prevalence continues to widen (Rodrigo and Rajapakse 2010, Rodrigo and Rajapakse 2010, Stöckl, Kalra et al 2013). Researchers postulate several hypotheses for this gender discrepancy including: early sexual debut among girls (Pettifor, Measham et al 2004, Hallett, Lewis et al 2007), genital inflammation due to untreated STIs (Freeman, Weiss et al 2006, Boily, Baggaley et al 2009, Masson, Passmore et al 2015), bacterial vaginosis (BV) (Myer, Kuhn et al 2005, Chersich and Rees 2008, Hilber, Francis et al 2010, Low, Chersich et al 2011, Cohen, Lingappa et al 2012), intra-vaginal cleaning and tightening practices (Myer, Kuhn et al 2005, Bagnol and Mariano 2008, Hilber, Francis et al 2010, Turner, Morrison et al 2010); and/or high incidence of sexual assault (Abrahams and Jewkes 2010).…”