By 2050, I am convinced, we could have stemmed the rise of allergies and autoimmune disease, largely by recognizing that the cause lies in the lack of parasites, and the lack of diversity of microflora in our guts, to the presence and resistance of which our immune system is adapted. With transplants of microbiota, or supplements of substances that were once supplied by worms and bacteria, we could have banished many autoimmune diseases, perhaps even including autism or other mental conditions. We will have almost certainly banished the problem of antimicrobial resistance with new strategies
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