It is the dream of both doctors and politicians: an existing vaccine, the safety of which has already been established and which can induce immunity to COVID-19. Part of the dream is already coming true, according to research by Radboudumc in Nijmegen. A vaccine against tuberculosis that has been used for years appears to have a general stimulating effect on the immune system. It, therefore, works effectively against several diseases. It remains to be seen whether COVID-19 is one of those.
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