Sampling procedure
As part of the qualitative cohort in South Africa, we purposefully selected households in the intervention (Arm A and B) communities with members who self-disclosed that they were living with HIV. We purposefully sub-sampled 21 PLHIV from 13 households across the 6 communities. These participants were selected for diversity in terms of age and gender and household composition (multigenerational or extended households, couples, single caregiver households, etc.).