The Zambia Population-Based HIV Impact Assessment (ZAMPHIA) began fieldwork in March 2016 and concluded fieldwork in August 2016. In Zambia, survey teams visited nearly 11,000 randomly selected households, interviewed over 27,000 adults and children, and provided HIV counseling and testing as well as syphilis and hepatitis B testing.

Key Findings

Key ZAMPHIA findings among adults ages 15 to 59:

    • HIV incidence: 0.61%
    • HIV prevalence: 12%
    • Viral load suppression: 59.2%
    • 90-90-90: 71% of people living with HIV (ages 15 to 59) in Zambia report knowing their status, 87% of those individuals self-report being on ART, and 89% of that group are virally suppressed
ZAMPHIA Professional Photo

Zambia Summary Sheet
     ZAMPHIA Summary Sheet Thumbnail

Slides with Figures and Maps



Zambia Final Report



ZAMPHIA Results in the News

Below is a curated roundup of media articles published following the ZAMPHIA results announcement. See here for the official PHIA press release.

The Economist: A report shows HIV in retreat in many African countries
The new data suggest that Africa is on the cusp of beating back HIV. But to do so it will have to redouble its efforts to educate, test and treat more people.

The Huffington Post: PEPFAR: Saving Lives And Changing The Course Of The AIDS Epidemic
We now have clear evidence from PEPFAR’s Population-based HIV Impact Assessments (PHIAs) that the epidemic is becoming controlled in older adults and babies in Malawi, Zambia, and Zimbabwe

Science: AIDS epidemic nears control in three African countries
This World AIDS Day, surprisingly good news came out of southern Africa, the region in the world that has suffered the most from HIV. A random household survey done of some 80,000 people in Zambia found that more than 86% of the people on treatment had fully suppressed their virus.

Science: Southern Africa’s AIDS epidemic takes nosedive
The new data show that each of these three countries is approaching the UNAIDS 90-90-90 goal to control HIV/AIDS epidemics. UNAIDS modeling shows that epidemics will peter out if 90% of infected people know their HIV status, 90% of that group receive antiretrovirals, and 90% on treatment have undetectable viral levels.

UNAIDS: UNAIDS Welcomes Compelling Results of Progress in AIDS REsponse from Surveys Supported by the United States of America in Three Africa Countries
Upon the release of compelling new evidence of national AIDS programme successes in Malawi, Zambia and Zimbabwe, UNAIDS congratulates the countries as well as the United States of America for its consistently outstanding support to the global AIDS response.

ZAMPHIA Website photo 2