The study takes a targeted community-based approach of tracking index family members at risk of HIV in Lesotho. The households of 992 index patients were visited, and 2,604 family members were tested. Among those tested, 71.1% were children (2-14 years) and 8.8% were adolescents (15-19 years). The intervention led to a 2% yield of HIV-positive children and adolescents (2% among children and 3% in adolescents), comparable with the national figure of 2.4%. Results indicate that the index tracking model can be a viable method for reaching children who are HIV-positive. Referral uptake is high and will contribute towards high ART coverage among children and adolescents.