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COVID-19 Death and BCG Vaccination Programs Worldwide

Tuberculosis and Respiratory Diseases 2021년 84권 1호 p.13 ~ 21
Jirjees Feras J., Bashi Yahya H. Dallal, Al-Obaidi Hala J.,
소속 상세정보
 ( Jirjees Feras J. ) - University of Sharjah College of Pharmacy
 ( Bashi Yahya H. Dallal ) - Queen’s University Belfast School of Pharmacy
 ( Al-Obaidi Hala J. ) - Queen’s University Belfast School of Pharmacy

Abstract


Several clinical trials are being conducted worldwide to investigate the protective effect of the bacillus Calmette-Guerin (BCG) vaccine against death in healthcare providers who are working directly with coronavirus disease 2019 (COVID-19) patients. Clinical studies suggested that certain live vaccines, particularly the BCG vaccine, could reduce the mortality due to other diseases caused by non-targeted pathogens, most probably through the nonspecific effects (heterologous effects). By the end of May 2020, the available information on the COVID-19 pandemic indicated the great effect of the BCG vaccine in reducing the number of COVID-19 death cases. The occurrence of death due to COVID-19 was found to be 21-fold lower in countries with a national BCG vaccination policy than in countries without such a policy, based on the medians of COVID-19 death case per 1 million of the population in these two groups of countries (p<0.001, MannWhitney test). Therefore, it can be concluded that the early establishment of a BCG vaccination policy in any country is a key element in reducing the number of COVID-19 and tuberculosis death cases.

키워드

COVID-19 Pandemic; BCG Vaccine; COVID-19 Death Cases; Coronavirus; COVID-19 Mortality

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