The diplomatic dispute between Washington and Pretoria has reached one of the world’s largest public health programmes.

The United States government has announced plans to phase out HIV/AIDS funding for South Africa, a move that could eventually remove support worth about $400 million annually from a country where more than 8 million people are living with HIV.

The decision affects funding provided through the President’s Emergency Plan for AIDS Relief (PEPFAR), one of America’s most successful global health initiatives and a programme that has helped save millions of lives across Africa since its launch in 2003.

The move marks a significant escalation in deteriorating relations between the Trump administration and South Africa, shifting tensions from trade and foreign policy into the public health arena.

A relationship that keeps getting worse