The UN AIDS agency has warned of a potential global health crisis, with projections of 2,000 new HIV infections daily and up to 6.3 million AIDS-related deaths over the next four years, if US foreign aid remains frozen. The halt, ordered by Donald Trump under his ‘America First’ policy, has disrupted critical healthcare services. Although the State Department has said that life-saving programmes will continue, UNAIDS reports that many clinics have already closed and thousands of health workers have been laid off. There are fears that this sudden collapse in funding will reverse decades of progress in combating HIV/AIDS, especially in vulnerable regions. In 2023 alone, there were 600,000 AIDS-related deaths globally. UNAIDS, which relies on the US for 35% of its core funding, says unless aid resumes or is replaced by another source, the world could face a devastating resurgence of the epidemic, echoing the crises seen in the 1990s and early 2000s. Trump’s team members say they have saved US taxpayers tens of billions of dollars by cancelling contracts, firing workers and rooting out fraud and waste, but they have offered little evidence to support that assertion.