Effective January 22, 2026, the U.S. ended its WHO membership per a 2025 executive order, with funding terminated and personnel recalled.
Trump administration cited WHO's COVID-19 response failures, lack of reforms, political biases, and disproportionate U.S. financial burden compared to other nations like China.
Experts warn of risks to disease tracking, vaccine matching, and international health programs; WHO faces budget crisis and potential staff cuts amid ongoing debt disputes.