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  Indian J Med Microbiol
 

Figure 2: Schematic representation of protection conferred by Bacillus Calmette–Guerin vaccination. Bacillus Calmette–Guerin vaccination elicits trained immunity and heterologous immunity against coronavirus disease-2019 viral infection, by modulating epigenetic, metabolic, and functional changes which lead to better protection from disease. Non-Bacillus Calmette–Guerin vaccinated individuals lack trained immunity which leads to a severe form of coronavirus disease-2019 disease

Figure 2: Schematic representation of protection conferred by Bacillus Calmette–Guerin vaccination. Bacillus Calmette–Guerin vaccination elicits trained immunity and heterologous immunity against coronavirus disease-2019 viral infection, by modulating epigenetic, metabolic, and functional changes which lead to better protection from disease. Non-Bacillus Calmette–Guerin vaccinated individuals lack trained immunity which leads to a severe form of coronavirus disease-2019 disease