Differentiated Service Delivery for Antiretroviral Therapy

data will be collected from the medical records already existed in the hospital and community-based organization (CBO) systems and entered into case report form (CRF). The expected number of participants is 5000. For each participant, the data will be collected prospectively for 24 months and retrospectively up to 5 years from the screening date. This study has no intervention and will not alter ART services whether be standard or DSD-ART at hospitals.