The rapid development of safe and effective COVID-19 vaccines has been an unprecedented scientific achievement and offers a promise for a healthy post-pandemic future. However, inequitable vaccine access has jeopardised that vision, and our global governance institutions have failed to anticipate, prevent, or redress this inequality. As of March 21, 2021, 78% of 447 million deployed doses of COVID-19 vaccines were in only ten countries.1, 2 Nearly a quarter of the world's population might not ha...