Globally, the latest COVID-19 vaccination rate is 4,540,345 doses per day, on average. As shown on the left, the U.S., U.K. and Isreal are presently on pace to achieve the 75% goal in 2021, while much of Europe would need a few years and Canada almost a decade. Clearly, much catch-up needed. Vaccination rates in many developing countries are not yet foreseeable.
At the moment, 7 years (which line above) is the estimated time to inoculate 75% of the world population with a two-dose vaccine. See Bloomberg’s COVID-19 vaccine tracker. There are, to date, 5 or 6 COVID-19 variants that may challenge vaccine efficacy rates as explained in the segment below.
Johns Hopkins Bloomberg School of Public Health Professor and Virologist Andrew Pekosz discusses known variants of the coronavirus and modelling of global vaccination rates. Here is a direct video link.