Note that even a single viron can cause disease, as per [1]. Maybe a trickle of tiny doses could help trigger an immune response, but there's always a risk of g

Note that even a single viron can cause disease, as per [1]. Maybe a trickle of tiny doses could help trigger an immune response, but there's always a risk of getting sick before then. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2677602/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2677602/