2.1. Study design
We conducted a randomized trial in 20 facilities slated to begin the YHA program. All facilities received a minimum allocation of YHA interns; allocation of additional interns was timed so that half of the clinics also received program interns (see study arms) to allow assessment of the impact of YHA program interns on HIV testing, treatment initiation, and retention in care. This was a pragmatic trial as YHA implemented and monitored the program following its standard operations, and we measured impact using routinely reported facility-level HIV data. The intervention was in place from October 2020–August 2021. The YHA program has been described in detail elsewhere [