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What is ZAMPHIA?


This 18-month initiative started in May 2019 will draw on lessons learned  from Ciheb’s successful Nigeria population-based HIV impact assessment. It will combine a novel linkage-to-care approach to ensure that HIV-positive individuals identified through the survey are efficiently linked to care and treatment and assess progress towards achievement of the UNAIDS 90-90-90 targets on national and subnational levels.


The data will be used to focus HIV services and resources to the areas of greatest need and help move Zambia closer to HIV epidemic control.



The Zambia Population-based HIV Impact Assessment (ZamPHIA) is a nationwide survey being implemented by the University of Maryland Baltimore School of Medicine’s Center for International Health, Education, and Biosecurity (Ciheb).


The PEPFAR-funded survey is assessing the prevalence and incidence of HIV, assessing the coverage and impact of HIV services, and characterizing HIV-related risk behaviors using a nationally representative sample of adults aged 15 years and older.  

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