A credible Theory about BCG immunization against Covid-19 infection would be tested soon (in next 6 months).
The historical fact is that BCG (Vaccine against Calmette & Guérin Bacille), has prooven its capacity to inforce human defenses against infectious germs even if they aren’t Tuberculosis (first target of BCG vaccine).
BCG vaccine might act as a revelator of innate human defense, not only defense coach like anti tetanos vaccine does.
It has already prooven efficiency against cancers and other disease.
Human innate defenses don’t need to be learnt by human body, it is in ADN memory.
BCG vaccine activates all innate defense reading AND SO could protect against Covid-19 intrusion.
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