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In this manuscript, we showed a statistically significant difference of the doubling times of the death toll between the group of countries with national universal Bacillus Calmette-Guerin (BCG) vaccination and the group without it for recent years. Based on a statistical test, the distributions of the doubling time of these two groups were significantly different (p=0.004). Miller et al. reported the relationship between BCG vaccination and mortality for COVID-19 based on deaths per milliondoi:10.1101/2020.04.06.20055251 fatcat:3qaoas6wajg7hkjlqbmrxrkt4e