On Nov. 16, 2021, the University of Oxfordﾒs and AstraZeneca announced that two billion doses of the ChAdOx1 nCov-19 coronavirus vaccine had been released, to more than 170 countries across seven continents. Approximately two-thirds of these have gone to low- and lower-middle-income countries, including more than 170 million doses delivered to 130 countries through the COVAX Facility.