>There's no need to encourage exposure to and infection by pathogens, and this idea often results in increased risk or severity of disease. Here's research int

>There's no need to encourage exposure to and infection by pathogens, and this idea often results in increased risk or severity of disease. Here's research into intentional infection with a parasite to treat autoimmune diseases https://pmc.ncbi.nlm.nih.gov/articles/PMC5401880/ https://pmc.ncbi.nlm.nih.gov/articles/PMC5401880/ https://en.wikipedia.org/wiki/Old_Friends_hypothesis https://en.wikipedia.org/wiki/Old_Friends_hypothesis