Current status + progress
About ten per cent of all orphans globally have lost one or both parents due to an AIDS-related cause
- Of the 147 million orphans (0–17 years) globally, 14.9 million [confidence bounds: 11.9 million–18.3 million] lost one or both parents due to an AIDS-related cause in 2021.
Protection, care and support for children affected by HIV and AIDS
A growing number of countries are developing national action plans for orphans and other vulnerable children. As of 2021, an estimated 14.9 million [11.9 million–18.3 million] children worldwide had lost one or both parents to due to AIDS-related causes. Three quarters of these children (11.2 million [9.1–13.6 million]) live in sub-Saharan Africa.
Data sources + methodology
Global AIDS monitoring 2022
In order to monitor the HIV response and progress towards achieving global goals, countries submit national and subnational data on a host of indicators to the Global AIDS Monitoring (GAM) system. Annual submissions are reviewed and validated. Data consist of programmatic data for HIV prevention, testing and treatment. Other indicators require data from population-based surveys and surveys focused on key populations at risk of HIV infection.
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UNAIDS Estimates and Spectrum’s AIDS Impact Model
Each year countries update their AIDS Impact Model in Avenir Health’s Spectrum software to develop the latest estimates for the HIV epidemic. Supported by UNAIDS, WHO and UNICEF these estimates are used to inform programme and policy decisions for HIV epidemic response.
Methods for HIV modelling are developed by the UNAIDS Reference Group on Estimates, Modelling and Projections.
All available data on HIV estimates are available at aidsinfo.unaids.org.
Nationally representative surveys
Multiple Indicator Cluster Surveys (MICS), Demographic and Health Surveys (DHS), AIDS Indicator Surveys (AIS), Population-based HIV Impact Assessments (PHIA) reproductive health surveys, sexual behaviour surveys and other nationally representative surveys are currently used to collect data on HIV and AIDS.