The Future of the HIV Response: Sustaining Progress in an era of Political Uncertainty and Scientific Opportunity.

The global HIV response is at a pivotal juncture. The field is experiencing a paradox: rapid scientific innovation alongside increasing fragility in financing, political commitment, and implementation systems. Significant progress has been made in expanding access to HIV treatment and prevention, but major gaps in coverage and equity existed previously, that were further exacerbated and destabilized by changes in US government support in January 2025. This commentary examines the implications of this divergence and argues that the future of the HIV response depends less on new biomedical discoveries than on the capacity to deliver existing and emerging options sustainably and with speed, scale and equity. Drawing on recent advances in HIV prevention and treatment, as well as massive disruptions and cuts in both global health programs, including PEPFAR, and biomedical research funding under the new US Presidential Administration, the paper identifies key priorities for the next phase of the response, including strengthening health systems, ensuring equitable access, re-centering community leadership, and securing long-term political and financial commitments. Without decisive action, the gains of the past four decades risk stagnation or, worse, actual reversal; with it, the goal of ending the HIV epidemic may still be achievable.