 Complete the following phrase:  Yet, by mid-December, some 16 countries representing only 14 of the worlds population had preordered more than 10 billion vaccine doses or about 51 of the available world supply. Specifically, Canada, Australia, and Japan having only 1 of the worlds COVID19 cases had collectively reserved some one billion vaccine doses, while the COVAX Facility had reserved only a few hundred million doses. Concerns were raised that wealthy countries may receive their vaccines in 202021 while developing countries may be excluded from vaccinations until 202324. Data from April 2021 comports with this expectation since 25 of the population in high income countries have been vaccinated compared to only 0.2 in low income countries. At the 