The United States government runs an HIV/AIDS program in South Africa that does something unusual: it pays the salaries of doctors, nurses, and counselors working inside South African government hospitals and clinics.

This is not typical foreign aid. It is something deeper. Removing this funding would break holes in South Africa's health system itself.

The program is called PEPFAR. It operates in more than 50 countries and launched in 2003. But South Africa is special—it has the world's largest HIV-positive population. Over the years, PEPFAR has become woven into the fabric of how South Africa delivers HIV care.

The numbers are striking: 26 million lives saved and 7.8 million HIV infections prevented in babies born to HIV-positive mothers worldwide since the program started. Much of that work happened in South Africa.

Who Runs PEPFAR Now?

In recent years, something has shifted. The U.S. has been moving PEPFAR money away from large international organizations and toward South African groups instead. According to a 2019 State Department document, South Africa now has local organizations managing 73% of PEPFAR funding. The goal was to build local capacity—organizations strong enough to continue the work even if PEPFAR eventually leaves.

But there is a catch. These South African organizations make the decisions about how to run programs. What they do not control is the money. It still comes from the U.S. government. If that money stops, they cannot simply replace it with South African government funds.

What PEPFAR Actually Pays For

PEPFAR focuses heavily on prevention. One key tool is something called PrEP—a daily pill that stops HIV before it starts, taken by people at high risk. According to PEPFAR's 2022 strategy document for South Africa, men who have sex with men use PrEP more than any other group in the country.

That matters politically. Back in the United States, some lawmakers question whether the U.S. should fund prevention programs for certain groups. If American politics shift, programs like PrEP for men who have sex with men could be at risk. When that happens, it affects what South Africa can offer.

The Real Problem: The Workforce

Here is the concrete vulnerability. Imagine a government clinic in rural South Africa. It has a nurse whose salary is paid by PEPFAR through a South African organization. If PEPFAR funding changes or ends, that clinic cannot simply shift the nurse to the South African government payroll. The government does not have the budget.

South Africa already spends a high percentage of its national budget on health—roughly 8 or 9 out of every 100 government dollars. But the need is enormous. About 5.5 million people take HIV medications in South Africa. Keeping them alive and healthy requires constant drug supplies, blood tests, and trained staff. PEPFAR pays for a lot of that.

When a large foreign health program runs for twenty years, it becomes part of how a country's system works. PEPFAR was never meant to be permanent. But after two decades, the line between a temporary aid program and a permanent part of the health system has blurred.

What happens next depends on two things: whether the U.S. keeps its commitment, and whether South Africa can pay if it does not. Right now, the answer to both questions is unclear.