The USAID THRIVE activity aims to contribute to achieving sustained epidemic control by improving the health and wellbeing of children living with HIV and reducing the risk of HIV infection among vulnerable children, adolescents, and caregivers. The activity will provide a suite of comprehensive services to build resilience and mitigate the multiple, layered vulnerabilities faced by these sub-populations. The target population for THRIVE activity is children and adolescents living with HIV (CALHIV), children whose caregivers are living with HIV (CPLHIV), HIV exposed infants (HEI), children of key populations (CKP), survivors of sexual violence against children (SVAC), and high-risk adolescent boys and girls, including out of school children.