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 2016-2017 offered HIV counseling and testing with return of results. The survey team visited over 15,000 households to collect this information. Details on results can be found below.

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. THIS 2022-2023 Summary sheet findings can be found below.