Tanzania faces mounting pressure to sustain HIV prevention and treatment programmes as changes to United States foreign assistance create uncertainty over long-term financing. The President's Emergency Plan for AIDS Relief (PEPFAR) has supported Tanzania's HIV response for over two decades, funding testing, treatment, prevention, laboratory systems and health-system strengthening. When the U.S. government froze or reviewed much of its foreign assistance in 2025, the impact was swift. UNAIDS reported that HIV-prevention interventions dependent on PEPFAR funding were disrupted, including programmes targeting adolescent girls and young women, services for vulnerable children and voluntary medical male circumcision. Some preventive therapy services were also affected, and concerns emerged over the availability of antiretroviral medicines and laboratory sample transportation.
The challenge extends far beyond replacing funding for medicines. U.S.-supported programmes have financed laboratory capacity, data systems, surveillance, technical assistance and healthcare personnel. UNAIDS reported that Tanzania held antiretroviral stocks expected to cover several months, but warned that uncertainty over longer-term financing could create difficulties without alternative funding secured. Tanzania has already taken steps to reduce the impact, including absorbing some health workers into government structures, strengthening electronic HIV treatment databases and finding alternative arrangements for transporting laboratory samples.
The experience of neighbouring countries offers cautionary lessons. Research from Uganda documented interruptions in prevention activities, viral-load testing and community outreach, with disruptions affecting HIV commodities distribution and some facilities losing donor-supported workers. Kenya reported antiretroviral rationing, shorter medication-refill periods and missed clinic visits in one county. An analysis by the Center for Global Development found that Tanzania was among countries where between 25 and 50 percent of planned PEPFAR resources were associated with terminated awards.
U.S. government records show PEPFAR-supported activities continued receiving funding in Tanzania during 2026, involving the Ministry of Health and organisations in regions including Pwani, Kigoma, Mara and Shinyanga. However, the real test lies ahead. HIV programmes depend on interconnected systems involving antiretroviral distribution, laboratory testing, viral-load monitoring, trained healthcare workers and functioning supply chains. The question for Tanzania is whether domestic financing and alternative international partners can fill the gap created by changing U.S. support without weakening progress against HIV.