There is a widespread administration in most Third World countries of the BCG vaccine, that’s a vaccine that helps prevent tuberculosis. But the BCG vaccine is a general vaccine that activates the immune system, and there have been analyses showing really a striking relationship to countries where there’s BCG vaccination and markedly reduced number of cases in mortality of COVID-19. People probably wondered, “How come Haiti isn’t wiped out, and the Caribbean?” Africa, some of these poor nations, how are they kind of skating through the pandemic? Many have thought younger age structure and the BCG vaccine may be associated factors.
Dr. Peter McCullough, Source