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Countries with high BCG and high TB deaths show the lowest COVID-19 deaths/million: Countries with BCG coverage and TB deaths were further classified based on the extent of vaccine coverage and deaths/100,000. The two major groups were: BCGhiTBhi and BCGhiTBlo. The data was plotted based on COVID-19 deaths/million for (a). 17th May 2020, (b). 1st October 2020 and (c). 31st December 2020. Unpaired t test was used to calculate statistical significance, *p < .05 and ****p < .0001
