Population-Based HIV Impact Assessments (PHIAs)
The U.S. Centers for Disease Control and Prevention (CDC) works with partners including host countries, local implementing partners, faith-based organizations, and other community-based organizations to measure progress towards HIV epidemic control in countries supported by the U.S. President’s Emergency Plan for AIDS Relief (PEPFAR).
CDC applies analytical insights from the Population-Based HIV Impact Assessments (PHIAs) to make timely adjustments to programs, leading to increased efficiencies and positive outcomes for community members, including people living with HIV.
CDC’s technical expertise and scientific leadership, as well as longstanding relationships with national and regional governments, implementing partners, and host communities, contribute to the success of the collection and analysis of survey data and the rapid implementation of insights towards continuous program improvement.
Joint United Nations Programme on HIV/AIDS (UNAIDS) global targets for HIV epidemic control call for finding and diagnosing people living with HIV and ensuring they receive sustained antiretroviral treatment. Research shows that sustained antiretroviral treatment reduces the amount of HIV in a person’s body – also referred to as viral load – to an undetectable level, that virtually eliminates transmission of the virus to sexual partners.
The PHIAs are led by the Ministry of Health in each participating country, in partnership with the CDC and with support from PEPFARexternal icon. Technical and implementation support is provided by partners, including ICAP at Columbia University and the University of Maryland School of Medicine.
Working with Ministries of Health, other U.S. government agencies and technical partners, CDC lends expertise in epidemiology, laboratory science, and data analysis to help partners design and implement PHIAs and rapidly harness the results for program improvement in PEPFAR-supported countries.
UNAIDS is leading the charge against HIV/AIDS with the goal of eliminating HIV as a public health threat by 2030. This initiative is aligned with the United Nations Sustainable Development Goals. To attain this goal, UNAIDS set the ambitious but achievable 90-90-90 external icontargets:
- By 2020, 90-percent of all people living with HIV will know their HIV status
- By 2020, 90-percent of all people with diagnosed HIV infection will receive sustained antiretroviral treatment (ART)
- By 2020, 90-percent of all people receiving ART will achieve viral suppression
Prior to 2020, PHIAs tracked progress towards the 90-90-90 goals – which reflect a snapshot of progress at the time of the survey – in sub-Saharan Africa and Haiti. Subsequent surveys will track progress towards the more ambitious 95-95-95 goals by 2030.
Where Have PHIAs Been Completed?
Click on the interactive map to discover where PHIAs have been completed and access PHIA summary sheets.
PHIA By the Numbers
Find more detailed information on each participating country’s HIV incidence, prevalence, and viral load suppression. Hover and click to learn about each country’s progress towards the 90-90-90 goals.
PHIA In the News
The Government of Nigeria, the U.S. President’s Emergency Plan for AIDS Relief (PEPFAR), CDC, and the University of Maryland School of Medicine released new data from the Nigeria HIV/AIDS Indicator and Impact Survey (NAIIS), one of the largest population-based HIV/AIDS household surveys ever conducted.
The U.S. President’s Emergency Plan for AIDS Relief (PEPFAR), CDC, and ICAP at Columbia University released today new findings from Population-based HIV Impact Assessments (PHIA) showing significant progress against HIV epidemics.
The Government of Rwanda (GoR), the U.S. President’s Emergency Plan for AIDS Relief (PEPFAR), the U.S. Centers for Disease Control and Prevention (CDC), and ICAP at Columbia University released new data from the Rwanda Population-based HIV Impact Assessment (RPHIA) that demonstrate Rwanda’s remarkable progress toward epidemic control — particularly in achieving high levels of linkage to treatment and viral load suppression among people living with HIV.
The U.S. President’s Emergency Plan for AIDS Relief (PEPFAR), CDC, and ICAP at Columbia University released new findings from the Swaziland HIV Incidence Measurement Survey (SHIMS2) at the 9th International AIDS Society Conference on HIV Science.
New findings by PEPFAR, CDC, and ICAP from the Population-based HIV Impact Assessments (PHIA) show that country, global, and US-supported HIV efforts have made critical progress toward achieving an AIDS-free generation.
A detailed descriptionpdf iconexternal icon of PEPFAR’s Strategy for Accelerating HIV/AIDS Epidemic Control (2017-2020).
PHIA journal supplementexternal icon as part of the August 2021 edition of the Journal of Acquired Immune Deficiency Syndromes (JAIDS).
PHIA project dataexternal icon to guide the global response to the HIV epidemic.
Shareable cards with PHIA survey findings to amplify with your networks.