BACKGROUNDTo assess the impact of combination HIV prevention (CHP) on HIV incidence, we analyzed the association between HIV incidence and scale-up of antiretroviral therapy (ART) and medical male circumcision in Rakai, Uganda. Changes in population-level viral load suppression and sexual behaviors were also examined.METHODSBetween 1999 and 2016, data were collected through 12 surveys from 30 communities in the Rakai Community Cohort Study, an open population-based cohort of persons aged 15-49 years. We assessed HIV incidence trends based on observed seroconversion data, self-reported ART and male circumcision coverage, viral load suppression, and sexual behaviors.RESULTSIn total, 33,937 study participants contributed 103,011 person-visits (HIV prevalence ~13%). Follow-up of 17,870 HIV-negative persons contributed 94,427 person-years with 931 seroconversions. ART was introduced in 2004; by 2016 coverage was 69% (72% in women vs. 61% in men, p<0.001). HIV viral load suppression among all HIV-positive persons increased from 42% in 2009 to 75% by 2016 (p<0.001). Male circumcision coverage increased from 15% in 1999 to 59% by 2016 (p<0.001). Persons 15-19 years reporting n 71 ever having sex increased from 30% to 55% (p<0.0001). HIV incidence declined by 42% in 2016 relative to the pre-CHP period prior to 2010 (1.17/100 py to 0.66/100 py; adjIRR:0.58: 95%CI: 0.45-0.76); declines were greater in men (adjIRR=0.46; 95%CI: 0.29-0.73) than women (adjIRR=0.68, 95%CI: 0.50-0.94).CONCLUSIONSIn this longitudinal study, HIV incidence significantly declined with CHP scale-up, providing empiric evidence that HIV control interventions can have substantial population-level impact. However, additional efforts are needed to overcome gender disparities and achieve HIV elimination.

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Objective: To understand the factors influencing choice of voluntary counselling and testing (VCT) for HIV with a view of suggesting measures for increased uptake. Design: Focus group discussions were used to elicit reasons for carrying out VCT and a cross sectional survey to estimate the proportion of people who undertake VCT. Setting: Bushenyi district, Uganda. Participants: A cluster random sample of 219 people and four purposively selected focus group discussions with 32 participants. Main outcome measures: Elicited attitudinal beliefs, self-efficacy expectations, and social influences that are probably associated with VCT for HIV based on the Attitude Social influence self-Efficacy (ASE) Model. The proportion of people who had ever undertaken VCT for HIV was also determined. Results: Thirty-eight(l7%) of the 219 people interviewed had ever undergone HIV. The factors influencing VCT for HIV were consequences of a test result, influences from a sexual partner, cost of VCT, physical accessibility of VCT, awareness, risk of HIV infection, need for linking VCT with care (especially availability of anti-retrovirals) and perceived quality of care of VCT services. Conclusions: Increased mobilisation and access for VCT, reducing costs of VCT, linking of VCT with care, and emphasising the positive consequences of VCT as well as providing high quality VCT services may increase the number of people seeking VCT.