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.

Where Have PHIAs Been Completed?

Click on the interactive map to discover where PHIAs have been completed and access PHIA summary sheets.

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Cameroon Summary Sheet 2020


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Côte d’Ivoire Summary Sheet 2020


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Côte d’Ivoire Summary Sheet 2018


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Eswatini Summary Sheet 2019


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Ethiopia Summary Sheet 2020


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Kenya Preliminary Report 2020


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Lesotho Summary Sheet 2020


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Lesotho Summary Sheet 2018


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Malawi Summary Sheet 2018


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Namibia Summary Sheet 2018


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Nigeria Summary Sheet 2019


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Rwanda Summary Sheet 2020


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Tanzania Summary Sheet 2018


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Uganda Summary Sheet 2018


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Zambia Summary Sheet 2019


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Zimbabwe Summary Sheet 2020


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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.

View All Summary Sheets

PHIA In the News

Nigeria HIV/AIDS Indicator and Impact Survey
Large National Survey Shows Smaller HIV Epidemic In Nigeria Than Once Thought and Highlights Key Gaps

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.

New CDC-supported surveys show five African countries are approaching HIV epidemic control
New CDC-supported Surveys Show Five African Countries Are Approaching HIV Epidemic Control

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.

Rwanda on track to achieve HIV epidemic control
Rwanda on track to achieve HIV epidemic control

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.

Rwanda on track to achieve HIV epidemic control
New Data from Swaziland Show Global Efforts are Helping to Control the HIV Epidemic

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 PHIA Survey Data Show Critical Progress Towards Global HIV Targets
New PHIA Survey Data Show Critical Progress Towards Global HIV Targets

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.

Resources
PEPFAR Strategyexternal icon

A detailed descriptionpdf iconexternal icon of PEPFAR’s Strategy for Accelerating HIV/AIDS Epidemic Control (2017-2020).

Background Information

data-informed decision making brief on PHIAs and PHIA Frequently Asked Questionspdf icon.

PHIA Journal Supplement

PHIA journal supplementexternal icon as part of the August 2021 edition of the Journal of Acquired Immune Deficiency Syndromes (JAIDS).

ICAP Resourcesexternal icon

PHIA project dataexternal icon to guide the global response to the HIV epidemic.

Social Media Cards

Shareable cards with PHIA survey findings to amplify with your networks.

Page last reviewed: November 15, 2021, 08:35 PM