with the intervention. hptn 071 population effects of antiretroviral therapy to reduce hiv transmission (popart) was a research study that examined the impact of a package of hiv prevention interventions on community-level hiv incidence. the prevention interventions included universal voluntary hiv counseling and testing provided at household level, linkage of hiv infected individuals to care and early initiation of antiretroviral therapy (art) for all those testing hiv-positive. the study was conducted in 21 communities in the western cape of south africa, and in zambia. findings show delivery of an hiv prevention strategy that includes offering in-home hiv testing to everyone, with immediate referral to hiv care, and treatment for people living with hiv based on prevailing in-country guidelines, can substantially reduce new hiv infections. findings from hptn 071 (popart) show delivery of an hiv prevention strategy that includes offering in-home hiv testing to everyone, with immediate referral to hiv care, and treatment for people living with hiv based on prevailing in-country guidelines, can substantially reduce new hiv infections. according to projections from mathematical modelling and cost-effectiveness analyses, continuation of community-wide hiv testing and prompt initiation of treatment as delivered in the hptn 071 (popart) study in south africa and zambia could lead to substantial reductions in new hiv cases, be cost-effective, and help to achieve the unaids 2030 targets. scholars program the hptn scholars program seeks to provide scholar recipients with the knowledge, skills and connections to further their careers as independent investigators in the hiv prevention research field. domestic and international scientists from groups under-represented in hiv prevention research are encouraged to apply. successful domestic investigator applicants will have received their terminal degree (md, phd, etc.). for international investigators, current md, phd, and mbchb students may apply, along with individuals who already graduated with their terminal degree. scholars: develop a research project using data from a completed or ongoing hptn hiv prevention study and complete their scholarship project within the program cycle present the findings of their project at the hptn annual meeting and submit a manuscript at the end of the scholarship cycle become knowledgeable of the process of doing research in nih-funded hiv networks, and have the opportunity to build their research networks within the context of the hptn scholars are provided funding to cover a portion of their time (typically ~ 10-30%) and expenses including travel and research materials/supplies. successful applicants will be funded for 18 months, subject to certain restrictions. the hptn scholars program is funded through a supplement from the national institute of allergy and infectious diseases and the national institute on drug abuse. community program community participation and engagement are critical in the conduct of scientific research. there is mutual benefit to communities and researchers when both parties work together throughout the scientific research process. in the hptn, community participation occurs throughout the network, community and site levels through various mechanisms that include representation on the ethics working group, the science review committee and protocol teams.