The study looked at Covid-19 instances and mortality for 15 days between 9 and 24 March in 178 countries and concluded that “incidence of Covid-19 was 38.4 per million in countries with BCG vaccination compared to 358.4 per million in the absence of such a program. The death rate was 4.28/million in countries with BCG programs compared to 40/million in countries without such a program.” Out of the 178 countries studied, 21 had no vaccination program, while the status was unclear in 26 countries. ..

Earlier this week, a study from the New York Institute of Technology also noted that countries with a universal vaccination policy, such as Japan and Brazil, seemed to be impacted less by Covid-19 compared with those that did not, such as Italy, US and The Netherlands.