So far, at least 107 million COVID-19 vaccine doses have been administered by 78 countries around the world according to Our World in Data, a non-profit online scientific publication based at the University of Oxford. Of those doses, more than half were given in the United States (34 million), the European Union (14 million) and the United Kingdom (10 million).

Since the World Health Organization (WHO) declared a pandemic last year, world leaders and health experts, including the WHO, have called for fair and equitable access to tests, treatments and vaccines. As new vaccines are being approved and ordered, questions are still being raised about how millions of vaccines will be shipped to all parts of the globe.