News Tracking COVID-19 vaccination rates worldwide: How many people have been vaccinated? April 22, 2021Karina Zaiets, Dian Zhang and Janie Haseman, USA TODAYComments Off on Tracking COVID-19 vaccination rates worldwide: How many people have been vaccinated? As richer countries are securing more COVID-19 vaccine doses than their populations need, many poorer countries have yet to report a single dose.