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The Tanzania HIV Impact Survey (THIS), a household-based national survey, was conducted between October 2016 and August 2017 to measure the status of Tanzania’s national HIV Response.

THIS offered HIV counseling and testing with return of results. The survey team visited over 15,000 households to collect this information.

A second THIS survey, called THIS 2022-2023, was conducted between November 2022 and March 2023. The survey team interviewed approximately 36,000 people 15 years and older.

Details on the findings can be found below.

Key Findings


Annual HIV incidence among adults


HIV prevalence among adults


HIV prevalence among children


Viral load suppression among adults living with HIV*

90-90-90 among adults living with HIV

Adults living with HIV who knew their HIV status


Adults who were aware of their HIV status who were on ART


Adults who were on ART who had viral load suppression

Tanzania HIV Impact Survey

(THIS) Music Video

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