Fig. 1
From: “No Regrets” Purchasing in a pandemic: making the most of advance purchase agreements
Secured COVID-19 vaccine doses, and dose requirements by country group. The data on secured doses are from the IMF-WHO COVID-19 Vaccine Tracker [39]. For China and India, the authors chose to use administered doses from Our World In Data [40] rather than secured doses, because the underlying source for the IMF dashboard (UNICEF data) is less comprehensive in tracking Indian and Chinese government deals with their domestic manufacturers. The dose requirements reflect the WHO strategy of 70% coverage with two doses, or, if including boosters, three doses. Each calculation includes 10% wastage