They, however, said further enquiries needed to be undertaken to determine the level of protection offered by the immunisation against the Severe Acute Respiratory Coronavirus type 2 also known as COVID-19.
But the survey, published in the Journal of Infectious Diseases and Epidemiology and titled, “A Multi-country Level Comparison of BCG Vaccination Policy and COVID-19 Cases and Mortality”, discovered that the common vaccine could contain the COVID-19 pandemic. Information on the BCG programmes of the sampled countries and COVID-19 were extracted from the BCG world atlas and the World Health Organisation COVID-19 situation report of April 7, 2020. Chi square tests were used to determine statistical significance. Spearman’s rank-order correlation was also deployed to determine if a relationship existed between BCG policies and COVID-19 cases and deaths in the selected nations.
“Spearman rank-order correlation shows statistically significant, strong negative correlation between countries’ BCG vaccination policies and confirmed COVID-19 cases and deaths , BCG policy and COVID-19 related death –correlation coefficient -0.374, p < 0.0005).”
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