COVAX and the unfulfilled promise of vaccine sharing

The global vaccine initiative COVAX aimed to procure 2 billion doses of COVID-19 vaccine in 2021 to accelerate efforts towards vaccine equity. By the end of the year, it had delivered only 910 million doses, more than half of these through donations. Antoine de Bengy Puyvallée and Katerini T. Storeng explain how donated doses came to dominate COVAX’s vaccine supply and they unpack the politics of vaccine sharing.